CN113833839A - Electric automobile gear control management method - Google Patents
Electric automobile gear control management method Download PDFInfo
- Publication number
- CN113833839A CN113833839A CN202111149711.1A CN202111149711A CN113833839A CN 113833839 A CN113833839 A CN 113833839A CN 202111149711 A CN202111149711 A CN 202111149711A CN 113833839 A CN113833839 A CN 113833839A
- Authority
- CN
- China
- Prior art keywords
- gear
- gear shifting
- vcu
- vehicle
- information
- 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.)
- Pending
Links
- 238000007726 management method Methods 0.000 title claims abstract description 13
- 238000000034 method Methods 0.000 claims description 8
- 230000003068 static effect Effects 0.000 claims description 3
- 238000004891 communication Methods 0.000 claims description 2
- 230000002159 abnormal effect Effects 0.000 abstract description 2
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000011217 control strategy Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/02—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used
- F16H61/0202—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used the signals being electric
- F16H61/0204—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used the signals being electric for gearshift control, e.g. control functions for performing shifting or generation of shift signal
- F16H61/0213—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used the signals being electric for gearshift control, e.g. control functions for performing shifting or generation of shift signal characterised by the method for generating shift signals
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
- F16H59/36—Inputs being a function of speed
- F16H59/44—Inputs being a function of speed dependent on machine speed of the machine, e.g. the vehicle
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
- F16H59/50—Inputs being a function of the status of the machine, e.g. position of doors or safety belts
- F16H59/54—Inputs being a function of the status of the machine, e.g. position of doors or safety belts dependent on signals from the brakes, e.g. parking brakes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
- F16H63/40—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism comprising signals other than signals for actuating the final output mechanisms
- F16H63/42—Ratio indicator devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
- F16H63/40—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism comprising signals other than signals for actuating the final output mechanisms
- F16H63/42—Ratio indicator devices
- F16H2063/423—Range indicators for automatic transmissions, e.g. showing selected range or mode
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Transmission Device (AREA)
Abstract
The invention provides a gear control management method for an electric automobile, which specifically comprises the following steps: the VCU of the vehicle controller collects the speed and brake signals of the vehicle and sends the information to the CAN network; the gear shifter ensures driving safety by judging whether the gear shifting condition is met, and the accuracy of gear shifting is ensured by checking the feedback of gear signals. In addition, the gear signals of the gear shifting device are subjected to interlocking processing so as to deal with abnormal conditions of multiple gears simultaneously. The invention has the beneficial effects that: through the gear checking treatment, the gear state can be timely and accurately displayed, and through the gear shifting logic management, the safety of the gear shifting operation of the vehicle is guaranteed.
Description
Technical Field
The invention relates to the field of new energy pure electric vehicles, in particular to a gear control management method for an electric vehicle.
Background
The traditional gear shift control of the new energy pure electric automobile adopts different control modes according to different gear electronic device structures and different control units. For example the following gear control strategies: when the electric automobile meets certain conditions (such as low speed of the vehicle, brake treading and the like), a driver operates the gear device to generate D-gear (forward), R-gear (reverse), N-gear or P-gear switching signals, and the control unit sends a control command to enter a corresponding driving mode according to the gear input signals.
In the running process of the electric automobile, if a driver shifts gears when the gear shifting condition is not met, the situation that the gear indicator button indicator lamp is inconsistent with the gear display of the vehicle instrument is possibly caused.
In addition, there is a possibility that a malfunction of a shifter circuit may occur, and a driving intention cannot be transmitted to the control unit through the shift operation device, resulting in a shift failure; or the gear shifter is subjected to electromagnetic interference or manual misoperation, and the situation that D gear signals and R gear signals are generated simultaneously can occur, at the moment, the execution system cannot identify gear commands, and accidents are easily caused.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides the gear control management method for the electric automobile, which is simple in structure and high in safety.
The object of the present invention is achieved by the following technical means. A gear control management method for an electric vehicle specifically comprises the following steps:
(1) the VCU acquires the vehicle speed and the brake signal and sends the information to the CAN network;
(2) the gear shifting device receives the information through the CAN network to judge the state of the vehicle, if the vehicle is in a static or low-speed state and a brake signal is effective, at the moment, if a driver performs gear shifting operation, the gear shifting device executes the step (3); if not, the gear shifting operation is not carried out, and the gear shifting indicator lamp is not lightened;
(3) the gearshift is switched in a gear position mode of 'N → R or R → N or N → D or D → N' according to the operation of the driver in the gear position; after the gear shifting operation, the gear shifter outputs a corresponding gear level signal to the VCU, and waits for reading the VCU to feed back the current gear; if the VCU judges that the gear shifting operation meets the set condition, the current gear information is fed back, and the instrument receives the current gear information and displays the gear state; after the gear shifter reads the current actual gear information sent by the VCU, whether the received gear information is consistent with the gear shifting operation gear or not is verified, and if so, a current gear indicator lamp of the gear shifter is turned on.
The invention has the beneficial effects that: through the gear checking treatment, the gear state can be timely and accurately displayed, and through the gear shifting logic management, the safety of the gear shifting operation of the vehicle is guaranteed.
Drawings
FIG. 1 is a topological diagram of vehicle gear control management.
FIG. 2 is a flow chart of the shifter shift logic.
Detailed Description
The invention will be described in detail below with reference to the following drawings:
the equipment related to the invention mainly comprises a gear shifter, a vehicle control unit VCU and an instrument, and is shown in figure 1.
The VCU of the whole vehicle controller collects vehicle speed, brake and gear state information in real time to judge whether gear shifting operation is met, namely, the gear device meets the gear shifting condition through judgment to ensure driving safety, and the gear signal feedback is verified to ensure the accuracy of gear shifting. In addition, the gear signals of the gear shifting device are subjected to interlocking processing so as to deal with abnormal conditions of multiple gears simultaneously. The gear signals of the gear shifter comprise R, N, D three states and R, N, D three gear indicator lamps. A driver operates the gear shifter, and the vehicle control unit reads a gear shifter signal; the gear signal is a high level active signal.
The specific implementation method of the invention comprises the following steps:
[ S1 ]: the vehicle control unit collects vehicle speed and brake signals and sends the information to the CAN network;
[ S2 ]: the gear device judges the state of the vehicle through the CAN information, if the vehicle is in a static state or a low-speed state (such as the vehicle speed is less than 5km/h) and a brake signal is effective, at the moment, if the driver performs gear shifting operation, the gear device executes the step S3; if not, the gear shifting operation is not carried out, and the gear shifting indicator lamp is not lightened;
[ S3 ]: the gearshift is shifted by "N → R or R → N or N → D or D → N" in accordance with the driver's gearshift operation; after the gear shifting operation, the gear shifter outputs a corresponding gear level signal to the VCU, and waits for reading the current gear fed back by the VCU. If the VCU judges that the gear shifting operation meets the set condition, the current gear information is fed back, and the instrument receives the current gear information and displays the gear state; after the gear shifter reads the current actual gear information sent by the VCU, whether the received gear information is consistent with the gear shifting operation gear or not is verified, and if so, the current gear indicator lamp of the gear shifter is lightened. The flow chart is shown in fig. 2.
Above, can realize the reliability of the operation of shifting gears and the accuracy that the gear pilot lamp shows.
Furthermore, if the communication between the gear shifter and the CAN network is overtime, the gear shifting operation is not allowed.
Further, if a plurality of gear signals are generated in the gear device at the same time, the VCU performs interlocking operation on the gear signals according to the vehicle state, and reports the fault. The VCU logic for the gear is determined as shown in table 1 below:
TABLE 1 VCU Shift logic State definition Table
Furthermore, if gear shifting errors, gear shifting failures and the like occur, the VCU sends information to report to the instrument to display faults so as to warn a driver.
After the gear shifting device is applied and implemented, the gear shifting system is simple and reliable, whether the gear shifting condition is met or not is judged according to the state of the whole vehicle so as to ensure the driving safety, and the feedback information of the whole vehicle controller is verified through the gear shifting device so as to ensure the gear shifting accuracy.
In addition, the invention is suitable for various passenger cars such as new energy pure electric vehicles, hybrid power vehicles and the like, and has wide application range.
Interpretation of terms
EV-bus: electric motor coach
Vcu (vessel control unit): vehicle control unit
The above description is only one embodiment of the present method, and not intended to limit the scope of the present method, and all modifications of equivalent structures and equivalent processes performed by the present method or directly or indirectly applied to other related technical fields are included in the scope of the present method.
Claims (4)
1. A gear control management method for an electric vehicle is characterized by comprising the following steps: the method specifically comprises the following steps:
(1) the VCU acquires the vehicle speed and the brake signal and sends the information to the CAN network;
(2) the gear shifting device receives the information through the CAN network to judge the state of the vehicle, if the vehicle is in a static or low-speed state and a brake signal is effective, at the moment, if a driver performs gear shifting operation, the gear shifting device executes the step (3); if not, the gear shifting operation is not carried out, and the gear shifting indicator lamp is not lightened;
(3) the gearshift is switched in a gear position mode of 'N → R or R → N or N → D or D → N' according to the operation of the driver in the gear position; after the gear shifting operation, the gear shifter outputs a corresponding gear level signal to the VCU, and waits for reading the VCU to feed back the current gear; if the VCU judges that the gear shifting operation meets the set condition, the current gear information is fed back, and the instrument receives the current gear information and displays the gear state; after the gear shifter reads the current actual gear information sent by the VCU, whether the received gear information is consistent with the gear shifting operation gear or not is verified, and if so, a current gear indicator lamp of the gear shifter is turned on.
2. The electric vehicle gear control management method according to claim 1, characterized in that: if the communication between the gear shifter and the CAN network is overtime, the gear shifting operation is not allowed.
3. The electric vehicle gear control management method according to claim 1, characterized in that: and if the gear device simultaneously generates a plurality of gear signals, the VCU carries out interlocking operation on the gear signals according to the vehicle state and reports the fault.
4. The electric vehicle gear control management method according to claim 1, characterized in that: if a gear shifting error or a gear shifting failure condition occurs, the VCU sends information to report to an instrument to display a fault, so that a driver is warned.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111149711.1A CN113833839A (en) | 2021-09-29 | 2021-09-29 | Electric automobile gear control management method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111149711.1A CN113833839A (en) | 2021-09-29 | 2021-09-29 | Electric automobile gear control management method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113833839A true CN113833839A (en) | 2021-12-24 |
Family
ID=78967576
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111149711.1A Pending CN113833839A (en) | 2021-09-29 | 2021-09-29 | Electric automobile gear control management method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113833839A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115654117A (en) * | 2022-09-29 | 2023-01-31 | 重庆金康赛力斯新能源汽车设计院有限公司 | Gear switching control method and device, computer equipment and storage medium |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108025657A (en) * | 2015-11-26 | 2018-05-11 | 加特可株式会社 | The control device and control method of electric vehicle |
| CN108454459A (en) * | 2018-01-26 | 2018-08-28 | 北京新能源汽车股份有限公司 | A kind of shift control method, device and electric vehicle |
| CN110877537A (en) * | 2019-12-04 | 2020-03-13 | 安徽江淮汽车集团股份有限公司 | Resettable gear shifting control method and system and electric automobile |
| CN111895081A (en) * | 2020-07-23 | 2020-11-06 | 奇瑞商用车（安徽）有限公司 | Pure electric vehicle gear switching reminding method |
| CN112009260A (en) * | 2019-05-30 | 2020-12-01 | 观致汽车有限公司 | Gear control method of electric vehicle |
| CN112193063A (en) * | 2020-10-23 | 2021-01-08 | 黄冈格罗夫氢能汽车有限公司 | Pure electric vehicles gear management control device |
| CN112344013A (en) * | 2020-11-05 | 2021-02-09 | 东风汽车股份有限公司 | Gear shifting control system and control method for pure electric commercial vehicle |
-
2021
- 2021-09-29 CN CN202111149711.1A patent/CN113833839A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108025657A (en) * | 2015-11-26 | 2018-05-11 | 加特可株式会社 | The control device and control method of electric vehicle |
| CN108454459A (en) * | 2018-01-26 | 2018-08-28 | 北京新能源汽车股份有限公司 | A kind of shift control method, device and electric vehicle |
| CN112009260A (en) * | 2019-05-30 | 2020-12-01 | 观致汽车有限公司 | Gear control method of electric vehicle |
| CN110877537A (en) * | 2019-12-04 | 2020-03-13 | 安徽江淮汽车集团股份有限公司 | Resettable gear shifting control method and system and electric automobile |
| CN111895081A (en) * | 2020-07-23 | 2020-11-06 | 奇瑞商用车（安徽）有限公司 | Pure electric vehicle gear switching reminding method |
| CN112193063A (en) * | 2020-10-23 | 2021-01-08 | 黄冈格罗夫氢能汽车有限公司 | Pure electric vehicles gear management control device |
| CN112344013A (en) * | 2020-11-05 | 2021-02-09 | 东风汽车股份有限公司 | Gear shifting control system and control method for pure electric commercial vehicle |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115654117A (en) * | 2022-09-29 | 2023-01-31 | 重庆金康赛力斯新能源汽车设计院有限公司 | Gear switching control method and device, computer equipment and storage medium |
| CN115654117B (en) * | 2022-09-29 | 2024-04-26 | 重庆金康赛力斯新能源汽车设计院有限公司 | Gear switching control method, gear switching control device, computer equipment and storage medium |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110261128B (en) | Offline self-learning and gear detection method for automobile automatic gear knob gear shifter | |
| CN203335820U (en) | Control module of automatic automobile shifting device and corresponding automatic automobile shifting device | |
| CN108204452B (en) | The confirmation and processing system of vehicle gear box failure | |
| CN103244665A (en) | Method and system for detecting door state and door sensor failures | |
| CN112344013B (en) | Gear shifting control system and control method for pure electric commercial vehicle | |
| CN110609491B (en) | Semi-physical simulation accident identification method and system for whole electric vehicle controller | |
| CN106598024B (en) | Retarder signal simulation detection device and detection method | |
| CN107097783A (en) | P keeps off parking control method and system and the vehicle with the system | |
| CN102042821A (en) | Method and apparatus for detecting trouble of steering angle sensor initialization | |
| CN113833839A (en) | Electric automobile gear control management method | |
| CN107965569A (en) | A kind of control method of electric line control gear shifting operator | |
| CN107830161B (en) | A kind of transmission control method applied to electric gear change system | |
| CN103064399B (en) | Fault simulation analytical equipment for vehicle diagnostics | |
| CN110081162B (en) | Method for detecting and coping with unexpected action of clutch actuating mechanism | |
| CN111038494A (en) | Electronic gear shifting system assisting automatic parking function | |
| CN109296747A (en) | Electronic gear shifter failure solution and system | |
| CN107575567B (en) | Gear shifting control method with parking protection function | |
| CN111232017B (en) | Tramcar human-computer interaction interface system | |
| CN108749811A (en) | A kind of electronic gear shifter shift control method, system and vehicle | |
| CN108515879A (en) | A kind of electric vehicle shift control system and its control method | |
| CN105159165A (en) | Vehicle safety monitoring method, monitoring system and vehicle with monitoring system | |
| CN113212445B (en) | Electronic gear shifter Hall element fault processing method and system and vehicle | |
| CN113002519B (en) | Hybrid vehicle fault processing method and device, electronic equipment and vehicle | |
| CN112594383A (en) | Clutch fault processing method, controller and vehicle | |
| CN117515150A (en) | Vehicle gear control method and device based on parking power taking and vehicle |
Legal Events
| 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 | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20211224 |