CN110626254A - Control method for vehicle welcome system - Google Patents
Control method for vehicle welcome system Download PDFInfo
- Publication number
- CN110626254A CN110626254A CN201910747889.2A CN201910747889A CN110626254A CN 110626254 A CN110626254 A CN 110626254A CN 201910747889 A CN201910747889 A CN 201910747889A CN 110626254 A CN110626254 A CN 110626254A
- Authority
- CN
- China
- Prior art keywords
- vehicle
- control unit
- rainfall
- bcm control
- unlocking
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 238000000034 method Methods 0.000 title claims abstract description 14
- 238000010438 heat treatment Methods 0.000 claims description 4
- 238000009423 ventilation Methods 0.000 claims description 4
- 238000001514 detection method Methods 0.000 claims description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000036651 mood Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/56—Heating or ventilating devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
- B60Q1/02—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments
- B60Q1/04—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights
- B60Q1/06—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights adjustable, e.g. remotely-controlled from inside vehicle
- B60Q1/08—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights adjustable, e.g. remotely-controlled from inside vehicle automatically
- B60Q1/085—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights adjustable, e.g. remotely-controlled from inside vehicle automatically due to special conditions, e.g. adverse weather, type of road, badly illuminated road signs or potential dangers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R1/00—Optical viewing arrangements; Real-time viewing arrangements for drivers or passengers using optical image capturing systems, e.g. cameras or video systems specially adapted for use in or on vehicles
- B60R1/02—Rear-view mirror arrangements
- B60R1/06—Rear-view mirror arrangements mounted on vehicle exterior
- B60R1/062—Rear-view mirror arrangements mounted on vehicle exterior with remote control for adjusting position
- B60R1/07—Rear-view mirror arrangements mounted on vehicle exterior with remote control for adjusting position by electrically powered actuators
- B60R1/074—Rear-view mirror arrangements mounted on vehicle exterior with remote control for adjusting position by electrically powered actuators for retracting the mirror arrangements to a non-use position alongside the vehicle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
- B60S1/00—Cleaning of vehicles
- B60S1/02—Cleaning windscreens, windows or optical devices
- B60S1/04—Wipers or the like, e.g. scrapers
- B60S1/06—Wipers or the like, e.g. scrapers characterised by the drive
- B60S1/08—Wipers or the like, e.g. scrapers characterised by the drive electrically driven
- B60S1/0818—Wipers or the like, e.g. scrapers characterised by the drive electrically driven including control systems responsive to external conditions, e.g. by detection of moisture, dirt or the like
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05F15/00—Power-operated mechanisms for wings
- E05F15/70—Power-operated mechanisms for wings with automatic actuation
- E05F15/71—Power-operated mechanisms for wings with automatic actuation responsive to temperature changes, rain, wind or noise
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Automation & Control Theory (AREA)
- Aviation & Aerospace Engineering (AREA)
- Transportation (AREA)
- Multimedia (AREA)
- Air-Conditioning For Vehicles (AREA)
- Lock And Its Accessories (AREA)
Abstract
The invention relates to the technical field of vehicle electronic systems, in particular to a control method of a vehicle welcome system. The invention has the beneficial effects that: the automobile is unlocked repeatedly, the automobile can be automatically operated, the phenomenon of misoperation can be reduced, the automobile can be automatically operated by detecting the temperature inside and outside the automobile, whether the air conditioner is started or not and the opening temperature are controlled, the rainfall outside the automobile is detected, the windscreen wiper can be opened in advance, the gear of the windscreen wiper is adjusted according to the rainfall, the distance between the two sides of the automobile and an external object is detected, whether the external rearview mirror is interfered by the external object when the external rearview mirror is unfolded or not is detected, the external rearview mirror is damaged, if the distance is suitable for the unfolding of the external rearview mirror, the BCM control unit controls the unfolding of the external rearview mirror, the dipped headlight can be opened in advance by detecting the brightness of the external environment, and the automobile using experience of passengers is improved.
Description
Technical Field
The invention relates to the technical field of vehicle electronic systems, in particular to a control method of a vehicle welcome system.
Background
With the implementation of national energy-saving emission-reduction policy, new energy vehicles become the leading soldiers in response to national energy-saving emission-reduction strategies. Along with the strong support of national policies, new energy vehicles are increasingly popularized in China, are also increasingly common in China, and are gradually expanded based on the use of the new energy vehicles.
In the popularization of new energy vehicles, the practical situations that the intelligent function of the new energy vehicles is too low, the cost performance is low, the acceptance of common users is low and the like exist. How to improve the cost performance of the new energy vehicle is the first problem in research and development of the new energy vehicle. Under the condition of not increasing the hardware configuration of the vehicle, the intelligent control function of the vehicle is improved, and the pursuit of vehicle designers is realized.
Disclosure of Invention
The invention aims to overcome the problems in the prior art and provides a control method of a vehicle welcome system, which can realize reasonable automatic operation for detecting external environment by passengers before boarding, and the operation is finished in advance, thereby avoiding influencing the mood of customers due to environmental influence factors in the vehicle after boarding and providing better riding experience for drivers and passengers.
In order to achieve the technical purpose and achieve the technical effect, the invention is realized by the following technical scheme:
a control method of a vehicle welcome system comprises the following steps:
step 1, unlocking a vehicle: after the vehicle is unlocked, a vehicle power supply supplies power to a BCM control unit arranged in the vehicle, and the BCM control unit controls a vehicle welcome lamp to be turned on;
step 2, state checking: the BCM control unit detects the state of the vehicle, and the detection content comprises the steps of detecting the temperature inside and outside the vehicle, the rainfall outside the vehicle, the distance between two sides of the vehicle and an external object and the brightness of the external environment through a temperature sensing module, a rainfall sensing module, a distance sensor and an external environment brightness sensor which are arranged on the vehicle body, and feeding back the detected temperature, the rainfall outside the vehicle, the distance between two sides of the vehicle and the external object and the brightness of the external environment to a CPU of a traveling crane computer;
and step 3, unlocking again: and (4) unlocking the vehicle again, transmitting a signal to a driving computer cpu by the BCM control unit, sending a feedback signal to the BCM control unit by the driving computer cpu, analyzing the feedback signal by the BCM control unit, and controlling the opening and opening temperature of the air conditioner in the vehicle, the opening and opening gear selection of the windscreen wiper, the unfolding of the outside rearview mirror and the opening of the dipped headlight.
Further, the vehicle unlocking mode comprises remote key unlocking and door handle unlocking by touching.
Further, the temperature sensing module includes an automatic AC air conditioner on the built-in vehicle.
Further, in the step 3, when the air conditioner in the vehicle is started, the BCM control unit controls the opening degree of the vehicle window and the ventilation and heating of the seat according to the specific temperature in the vehicle and the rainfall outside the vehicle.
Further, the BCM control unit controls the windscreen wiper to select gears according to the rainfall fed back by the rainfall sensing module.
And further, the method also comprises a step 4 of pressing a vehicle locking key for at least 5 seconds, and controlling the BCM control unit to automatically ignite the vehicle by the CPU of the traveling crane computer.
The invention has the beneficial effects that: the automatic operation of the vehicle controls whether the air conditioner is started and the temperature of the air conditioner is started or not by detecting the temperature of the inside and the outside of the vehicle, the windscreen wiper can be opened in advance by detecting the rainfall outside the vehicle, the gear of the windscreen wiper is adjusted according to the rainfall, whether the outer rearview mirror is interfered by an external object or not when the outer rearview mirror is unfolded or not is detected by detecting the distance between the two sides of the vehicle body and the external object, so that the outer rearview mirror is damaged, if the distance is suitable for the unfolding of the outer rearview mirror, the BCM control unit controls the unfolding of the outer rearview mirror, the dipped headlight can be opened in advance by detecting the brightness of the external environment, the vehicle using experience of passengers is improved, and in addition, the vehicle window opening degree and the ventilation and heating of the seat are controlled, so that the vehicle is more humanized, meanwhile, the vehicle is ignited by long pressing of the vehicle locking key, so that inconvenience caused by the fact that a driver needs to find the position of an ignition switch due to insufficient ambient light after getting on the vehicle is avoided.
Detailed Description
In order to make the technical means, the creation features, the achievement purposes and the effects of the invention easy to understand, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
A control method of a vehicle welcome system comprises the following steps:
step 1, unlocking a vehicle: after the vehicle is unlocked by remote key unlocking, door handle unlocking by touch and other modes, the vehicle power supply supplies power to a BCM control unit arranged in the vehicle, and the BCM control unit controls a vehicle welcome lamp to be turned on;
step 2, state checking: the BCM control unit detects the state of the vehicle, the detection content comprises that the temperature inside and outside the vehicle, the rainfall outside the vehicle, the distance between the two sides of the vehicle and an external object and the external environment brightness are detected through a temperature sensing module, a rainfall sensing module, a distance sensor and an external environment brightness sensor which are installed on the vehicle body, and are fed back to a Central Processing Unit (CPU) of a traveling crane to form a feedback signal, specifically, the temperature sensing module comprises an automatic Alternating Current (AC) air conditioner which is arranged on the built-in vehicle, and the rainfall sensing module comprises an RLS feedback system in the BCM control unit;
and step 3, unlocking again: the vehicle unlocking operation is carried out again, the BCM control unit transmits a signal to the traveling computer cpu, the traveling computer cpu sends a feedback signal to the BCM control unit, the BCM control unit analyzes the feedback signal and controls the opening and opening temperature of the air conditioner in the vehicle, the opening and opening gear selection of the windscreen wiper, the unfolding of the outside rearview mirror and the opening of the dipped headlight, when the BCM control unit opens the air conditioner in the vehicle, the opening degree of the vehicle window and the ventilation and heating of the seat are controlled according to the specific temperature in the vehicle and the rainfall outside the vehicle, so that the BCM control unit is more humanized, and the BCM control unit controls the gear selection of the windscreen wiper according to the rainfall fed back by the rainfall sensing module;
and 4, pressing the vehicle locking key for at least 5 seconds, controlling the BCM control unit to automatically ignite the vehicle by the driving computer cpu, and searching for a key hole position or an ignition switch after a driver does not need to get on the vehicle.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (6)
1. A control method for a vehicle welcome system is characterized by comprising the following steps:
step 1, unlocking a vehicle: after the vehicle is unlocked, a vehicle power supply supplies power to a BCM control unit arranged in the vehicle, and the BCM control unit controls a vehicle welcome lamp to be turned on;
step 2, state checking: the BCM control unit detects the state of the vehicle, and the detection content comprises the steps of detecting the temperature inside and outside the vehicle, the rainfall outside the vehicle, the distance between two sides of the vehicle and an external object and the brightness of the external environment through a temperature sensing module, a rainfall sensing module, a distance sensor and an external environment brightness sensor which are arranged on the vehicle body, and feeding back the detected temperature, the rainfall outside the vehicle, the distance between two sides of the vehicle and the external object and the brightness of the external environment to a CPU of a traveling crane computer;
and step 3, unlocking again: and (4) unlocking the vehicle again, transmitting a signal to a driving computer cpu by the BCM control unit, sending a feedback signal to the BCM control unit by the driving computer cpu, analyzing the feedback signal by the BCM control unit, and controlling the opening and opening temperature of the air conditioner in the vehicle, the opening and opening gear selection of the windscreen wiper, the unfolding of the outside rearview mirror and the opening of the dipped headlight.
2. The vehicle welcome system control method according to claim 1 wherein the vehicle unlocking mode comprises remote key unlocking and door handle touch unlocking.
3. The method of claim 1, wherein the temperature sensing module comprises an automatic AC air conditioner on the interior vehicle.
4. The method for controlling the welcome system of the vehicle as claimed in claim 1, wherein in the step 3, the BCM control unit controls the opening degree of the window, ventilation and heating of the seat according to the specific temperature in the vehicle and the rainfall outside the vehicle when the air conditioner in the vehicle is turned on.
5. The method for controlling the welcome system of the vehicle as recited in claim 1, wherein the BCM control unit controls the selection of the gear of the wiper according to the amount of the rainfall fed back by the rainfall sensing module.
6. The method as claimed in claim 1, further comprising a step 4 of pressing a lock key for at least 5 seconds, wherein the cpu of the driving computer controls the BCM control unit to automatically ignite the vehicle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910747889.2A CN110626254A (en) | 2019-08-14 | 2019-08-14 | Control method for vehicle welcome system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910747889.2A CN110626254A (en) | 2019-08-14 | 2019-08-14 | Control method for vehicle welcome system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110626254A true CN110626254A (en) | 2019-12-31 |
Family
ID=68969748
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910747889.2A Withdrawn CN110626254A (en) | 2019-08-14 | 2019-08-14 | Control method for vehicle welcome system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110626254A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113459943A (en) * | 2021-06-29 | 2021-10-01 | 华人运通(江苏)技术有限公司 | Vehicle control method, device, equipment and storage medium |
| CN114423111A (en) * | 2020-10-28 | 2022-04-29 | 常州星宇车灯股份有限公司 | Welcome lamp control system and control method |
| CN118722467A (en) * | 2024-08-30 | 2024-10-01 | 比亚迪股份有限公司 | Welcome system and control method thereof, electronic device, readable storage medium and vehicle |
| CN119428508A (en) * | 2023-08-07 | 2025-02-14 | 长城汽车股份有限公司 | Vehicle welcoming control method, vehicle and medium |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102880448A (en) * | 2011-06-02 | 2013-01-16 | 福特全球技术公司 | Methods and apparatus for wireless device application having vehicle interaction |
| CN103491505A (en) * | 2012-06-08 | 2014-01-01 | 苹果公司 | Accessory control with geo-fencing |
| GB2536683A (en) * | 2015-03-26 | 2016-09-28 | Denso Corp | Vehicle equipment control |
| CN205936129U (en) * | 2016-08-18 | 2017-02-08 | 徐州生物工程职业技术学院 | A control system for reduce vapour in -car temperature fast |
| US20180345889A1 (en) * | 2017-06-06 | 2018-12-06 | Toyota Motor Engineering & Manufacturing North America, Inc. | Smart vehicle accommodation device adjustment |
| CN109353294A (en) * | 2018-09-26 | 2019-02-19 | 重庆金康新能源汽车设计院有限公司 | A kind of Full Vehicle System control method and device, car-mounted terminal, storage medium |
| CN109823259A (en) * | 2018-12-26 | 2019-05-31 | 迅驰车业江苏有限公司 | A kind of car light welcome and the control method for seeing function off |
-
2019
- 2019-08-14 CN CN201910747889.2A patent/CN110626254A/en not_active Withdrawn
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102880448A (en) * | 2011-06-02 | 2013-01-16 | 福特全球技术公司 | Methods and apparatus for wireless device application having vehicle interaction |
| CN103491505A (en) * | 2012-06-08 | 2014-01-01 | 苹果公司 | Accessory control with geo-fencing |
| GB2536683A (en) * | 2015-03-26 | 2016-09-28 | Denso Corp | Vehicle equipment control |
| CN205936129U (en) * | 2016-08-18 | 2017-02-08 | 徐州生物工程职业技术学院 | A control system for reduce vapour in -car temperature fast |
| US20180345889A1 (en) * | 2017-06-06 | 2018-12-06 | Toyota Motor Engineering & Manufacturing North America, Inc. | Smart vehicle accommodation device adjustment |
| CN109353294A (en) * | 2018-09-26 | 2019-02-19 | 重庆金康新能源汽车设计院有限公司 | A kind of Full Vehicle System control method and device, car-mounted terminal, storage medium |
| CN109823259A (en) * | 2018-12-26 | 2019-05-31 | 迅驰车业江苏有限公司 | A kind of car light welcome and the control method for seeing function off |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114423111A (en) * | 2020-10-28 | 2022-04-29 | 常州星宇车灯股份有限公司 | Welcome lamp control system and control method |
| CN113459943A (en) * | 2021-06-29 | 2021-10-01 | 华人运通(江苏)技术有限公司 | Vehicle control method, device, equipment and storage medium |
| CN119428508A (en) * | 2023-08-07 | 2025-02-14 | 长城汽车股份有限公司 | Vehicle welcoming control method, vehicle and medium |
| CN118722467A (en) * | 2024-08-30 | 2024-10-01 | 比亚迪股份有限公司 | Welcome system and control method thereof, electronic device, readable storage medium and vehicle |
| CN118722467B (en) * | 2024-08-30 | 2025-01-14 | 比亚迪股份有限公司 | Welcome system, control method thereof, electronic device, readable storage medium and vehicle |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20191231 |