CN109572700A - A kind of shift control method and system - Google Patents
A kind of shift control method and system Download PDFInfo
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- CN109572700A CN109572700A CN201811168123.0A CN201811168123A CN109572700A CN 109572700 A CN109572700 A CN 109572700A CN 201811168123 A CN201811168123 A CN 201811168123A CN 109572700 A CN109572700 A CN 109572700A
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W30/00—Purposes of road vehicle drive control systems not related to the control of a particular sub-unit, e.g. of systems using conjoint control of vehicle sub-units, or advanced driver assistance systems for ensuring comfort, stability and safety or drive control systems for propelling or retarding the vehicle
- B60W30/18—Propelling the vehicle
- B60W30/19—Improvement of gear change, e.g. by synchronisation or smoothing gear shift
Abstract
The invention discloses a kind of shift control method and systems, wherein should be comprising steps of obtaining shift control signal；Whether the shifting state and vehicle speed information that detect current vehicle reach the preset state of shift, shift gears if so, controlling signal according to the shift；Judge whether each gear breaks down, if so, fault-signal is sent to gearbox control.The present invention passes through monitoring vehicle current shifting state and vehicle speed information when receiving shift control signal, to judge whether the preset state for reaching shift, reaching shift preset state is to shift gears, safe shift environment is provided for the trip of vehicle, whether detecting real-time gear breaks down simultaneously, the traveling degree of danger of vehicle is substantially reduced, while user being facilitated to drive a vehicle.
Description
Technical field
The present invention relates to automotive field more particularly to a kind of shift control method and systems
Background technique
With the continuous development of automobile industry, user has higher requirement to performances such as safety, the flexibility ratios of automobile, excellent
The shift control for changing automobile is particularly important.Existing shift control program, which mainly passes through user and is operated manually realization, changes
Gear control, not to shift when gear and speed be monitored, be prone to accidents, it is not safe enough, and cannot monitor in time
And solve the gear failure of vehicle.
Such as the patent of Publication No. CN107415774A discloses a kind of shift control method, device and electric car.
Wherein, which includes: the speed for obtaining electric car；According to gas pedal aperture and preset shifting points, really
Determine whether speed reaches shift speed；If speed reaches shift speed, motor is controlled by electric machine controller and passes through speed change
Case controller controls gearbox, carries out the upshift or downshift of electric car current shift.Above-mentioned technical proposal, with accelerator open degree
With speed is two-parameter goes to formulate shift schedule, and speed of shifting gears is according to different accelerator open degrees and gearbox in different gear works
Motor-transmission system peak efficiency value when making and determination, electric car can be made to be in for a long time in the process of moving
In high-power working condition, reduce the consumption of the energy, improves the utilization rate of the energy.But the invention only passes through judgement
Speed decides whether to carry out the lifting of gear, and does not control each gear of vehicle, does not carry out failure to gear
Detection, inadequate safe and intelligent.
Summary of the invention
It, can be significantly the purpose of the present invention is in view of the drawbacks of the prior art, providing a kind of shift control method and system
Improve the shift safety of vehicle.
In order to achieve the goal above, the invention adopts the following technical scheme:
A kind of shift control method, comprising steps of
Obtain shift control signal；
Whether the shifting state and vehicle speed information that detect current vehicle reach the preset state of shift, if so, according to institute
Shift control signal is stated to shift gears；
Judge whether each gear breaks down, if so, fault-signal is sent to gearbox control.
Preferably, the vehicle includes P, R, N, D, M and S gear, and P, S gear are key gear, and R, N, D, M are bar gear
Position, wherein S keeps off signal and is sent to gearbox control by CAN bus, and S gear signal operates effectively under D gear pattern.
Preferably, it further comprises the steps of:
The location information of detection gear is incuded by angle Hall sensor.
Preferably, the angle Hall sensor uses double-core Redundancy Design.
Preferably, it is described detection current vehicle shifting state and vehicle speed information whether reach shift preset state it is specific
Are as follows:
Judge whether to receive the push button signalling that P is kept off, if so, judge whether current vehicle speed is greater than setting speed threshold value, if
It is that the preset state then not up to shifted gears simultaneously issues the first prompt information；
Judge whether to receive the gear shifting signal that R is kept off, if so, judging whether current shift keeps off in D/M and current vehicle speed is big
In setting speed threshold value, if so, the preset state of not up to shift and the second prompt information of sending；
Judge whether to receive the gear shifting signal that D is kept off, if so, judging whether current shift keeps off in R and current vehicle speed is greater than
Setting speed threshold value, if so, being not up to the preset state of shift and issuing third prompt information.
It is preferably, described to judge whether each gear breaks down specifically:
Judge whether to receive the push button signalling that P is kept off under non-P gear state, if so, judging whether current vehicle speed is greater than
Pre-set velocity threshold value judges whether persistently receive P in preset time period if so, current shift is kept to continue preset time period
The push button signalling and speed of gear are greater than pre-set velocity threshold value, if so, P keeps off failure；If current vehicle speed is less than pre-set velocity threshold value,
The push button signalling that P gear whether is persistently received in preset time period is then judged, if so, P keeps off failure；
The push button signalling that P gear whether is persistently received in preset time period is judged under P gear state, if so, P keeps off failure；
Fault-signal is sent to gearbox control, the gearbox control no longer responds P gear key.
Preferably, the vehicle includes shift plectrum, described to judge whether each gear breaks down specifically:
The shift plectrum is judged under R/N/D/S shifting state whether without response, if so, M keeps off failure；
Preferably, it further comprises the steps of:
Judge whether current shift is D gear after detecting M gear failure, if so, flashing D is with gear lamp.
Preferably, it further comprises the steps of:
If shifting gears under P gear state, judge whether to receive brake signal；
If receiving brake signal, judge whether the trigger signal for receiving solving locking key, if so, sending third prompt letter
Breath；
If being not received by brake signal, the 4th prompt information is sent.
Correspondingly, also providing a kind of shifting control system, comprising:
Module is obtained, for obtaining shift control signal；
Whether shift module, shifting state and vehicle speed information for detecting current vehicle reach the preset state of shift,
It shifts gears if so, controlling signal according to the shift；
Fault detection module, for judging whether each gear breaks down, if so, fault-signal is sent to speed change
Case controller.
Compared with prior art, the present invention passes through the current shifting state of monitoring vehicle when receiving shift control signal
And vehicle speed information, it is vehicle that judge whether the preset state for reaching shift, reaching shift preset state, which is to shift gears,
Trip provides the shift environment of safety, while whether detecting real-time gear breaks down, and substantially reduces the traveling danger journey of vehicle
Degree, while user being facilitated to drive a vehicle.
Detailed description of the invention
Fig. 1 is a kind of shift control method flow chart that embodiment one provides；
Fig. 2 is a kind of shifting control system structure chart that embodiment one provides；
Fig. 3 is that P keeps off sensor circuit；
Fig. 4 is PEPS end interface circuit；
Fig. 5 is selector end interface circuit；
Fig. 6 is that S keeps off key circuit and detection circuit；
Fig. 7 is Hall chip sample circuit；
Fig. 8 is shift logic table；
Fig. 9 is selector system hardware framework map.
Specific embodiment
Below be invention specific embodiment and in conjunction with attached drawing, the technical solution of invention is further described, but send out
It is bright to be not limited to these examples.
SCU (Shift control unit): selector module
TCU (Transmission control unit): gearbox control
GBA (GearBox actuator): executing agency
KL30 (Battery PowerSupply): battery feed
KL15 (Ignition Power Supply): On gear power supply
IGN (Ignition): keyed ignition gear
CAN (Controller Area Network): CAN bus
Embodiment one
Present embodiment discloses a kind of shift control methods, as shown in Figure 1, comprising steps of
S101, shift control signal is obtained；
Whether S102, the shifting state for detecting current vehicle and vehicle speed information reach the preset state of shift, if so, root
It shifts gears according to shift control signal；
S103, judge whether each gear breaks down, if so, fault-signal is sent to gearbox control.
To solve the problems, such as the inadequate safe and intelligent of existing selector, the present embodiment provides a kind of shift control method and it is
System, by monitoring vehicle current shifting state and vehicle speed information when receiving shift control signal, to judge whether to reach
The preset state of shift, reaching shift preset state is to shift gears, and provides safe shift environment for the trip of vehicle, together
When detecting real-time gear whether break down, substantially reduce the traveling degree of danger of vehicle, while user being facilitated to drive a vehicle.
Preferably, the vehicle includes P, R, N, D, M and S gear, and P, S gear are key gear, and R, N, D, M are bar gear
Position, wherein S keeps off signal and is sent to gearbox control by CAN bus, and S gear signal operates effectively under D gear pattern.
The P/R rigid line output function of the present embodiment
1) P is kept off: SCU retains rigid line P and keeps off signal, and it is as follows that P keeps off signal definition: in P gear, switch is disconnected；In non-P gear,
It closes the switch, SCU input 12V voltage gives PEPS module, and P keeps off sensor circuit such as Fig. 3, PEPS end interface circuit such as Fig. 4, SCU
Processing logic between PEPS:
SCU postpones 200ms after detecting that rigid line IGN1 is disconnected, and SCU just carries out gear switching, and gear is kept off from non-P to be switched
To P gear (after PEPS control IGN1 is disconnected, ACC gear is not arrived also inside PEPS, this section of time PEPS can not judge that gear is cut
Move work, and PEPS has arrived ACC in inside, just carries out gear switching judging, has gear switching just lower electric after the movement of non-P to P
To OFF.If judged without movement, will appear and power on ACC and automatically return to OFF situation again) (note: non-P gear stops working feelings
Condition, SCU are switched over according to bus PEPS CAN power supply signal, after receiving PEPS bus power source signal is ACC, are kept off
Position change is from non-P to P, and PEPS is again from ACC to OFF)
SCU (electric gear change module) bus communication function is defined as KL15 electricity and postpones 30S after electricity IGN1 is disconnected under vehicle
Bus communication function.It (is not that 0, SCU gear does not automatically return to P more than speed after 30s, PEPS will not then descend electricity to OFF, protect
Hold ACC gear.)
2) R is kept off: R keeps off rigid line and exports logic: R keeps off low level, and non-R gear is hanging.
When R is kept off, rigid line exports R and keeps off signal selector, this signal is supplied to back-up lamp relay, need to meet certain band
Loading capability (sink current), drives for low side, this scheme sets electric current≤200mA.Selector end interface circuit is as shown in Figure 5.
Wherein, S keeps off key circuit and detection circuit such as Fig. 6, and SCU is determined by after key pressing, and S gear signal is passed through CAN
Bus is sent to TCU, and S gear signal operates just effective only under D gear pattern.
Preferably, it further comprises the steps of:
The location information of detection gear is incuded by angle Hall sensor.
Fig. 7 is Hall chip sample circuit, detects selector gear information and executing agency by angle Hall sensor
Actual position information is simultaneously dealt into CAN bus, is used for TCU and instrument etc..
Preferably, the angle Hall sensor uses double-core Redundancy Design.
Angle Hall uses double-core Redundancy Design, and each 1ms samples one group of data, two groups of data be or relationship, i.e., just
Lower of normal situation judges a wherein circuit-switched data, if the error of data detection code or data and the gear data of calibration are different all the way
It causes, is then made a decision using second group of data.
The present embodiment P/N prevents the gear of maloperation from locking through electronic lock realization without electromagnetic valve lock, by SCU according to changing
Keep off logical process；
Preferably, it is described detection current vehicle shifting state and vehicle speed information whether reach shift preset state it is specific
Are as follows:
Judge whether to receive the push button signalling that P is kept off, if so, judge whether current vehicle speed is greater than setting speed threshold value, if
It is that the preset state then not up to shifted gears simultaneously issues the first prompt information；
Judge whether to receive the gear shifting signal that R is kept off, if so, judging whether current shift keeps off in D/M and current vehicle speed is big
In setting speed threshold value, if so, the preset state of not up to shift and the second prompt information of sending；
Judge whether to receive the gear shifting signal that D is kept off, if so, judging whether current shift keeps off in R and current vehicle speed is greater than
Setting speed threshold value, if so, being not up to the preset state of shift and issuing third prompt information.
P keep off key, when speed be greater than 3km/h, press P gear key, then SCU send MisopertionHint=$ 2 to
TCU, TCU should allow instrument to show " could keep off into P under stationary vehicle ", and issue prompt tone with instrument.
Have under speed into R or into D:a) current shift in D/M, speed is greater than 3km/h, and selector changes to R from D/M, then SCU
Sending MisopertionHint=$ 1 should allow instrument to show " speed is too high to shift gears " to TCU, TCU, and with instrument
Issue prompt tone；B) current shift is kept off in R, and speed is greater than 3km/h, and selector is from R to D, then SCU is sent
MisopertionHint=$ 1 gives TCU, TCU that instrument should be allowed to show " speed is too high to shift gears ", and mentions with instrument sending
Show sound.Fig. 8 is the present embodiment shift logic table.
It is preferably, described to judge whether each gear breaks down specifically:
Judge whether to receive the push button signalling that P is kept off under non-P gear state, if so, judging whether current vehicle speed is greater than
Pre-set velocity threshold value judges whether persistently receive P in preset time period if so, current shift is kept to continue preset time period
The push button signalling and speed of gear are greater than pre-set velocity threshold value, if so, P keeps off failure；If current vehicle speed is less than pre-set velocity threshold value,
The push button signalling that P gear whether is persistently received in preset time period is then judged, if so, P keeps off failure；
The push button signalling that P gear whether is persistently received in preset time period is judged under P gear state, if so, P keeps off failure；
Fault-signal is sent to gearbox control, the gearbox control no longer responds P gear key.
If keeping off existing P gear by key pressing in non-P, speed is first determined whether, if speed > 3km/h, front is worked as in holding
, if continuing 60s, speed is still greater than 3km/h, and determines P gear key and press always, then is determined as P gear key event
Hinder (can not bounce), send failure to TCU, no longer response P keeps off key at this time, only passes through electricity under KL15 (On keeps off power supply) into P
Just it is able to achieve；If speed is less than 3km/h, P is returned, continues 60s and detects that P gear key is pressed always, be then determined as that P is kept off
Key failure (can not bounce), send failure to TCU, no longer response P keeps off key at this time, and other gears can normally shift gears.
Keep off existing P gear by key pressing in P, if continuing 60s, detect that P gear key is pressed always, then be determined as P gear by
Key failure (can not bounce), send failure to TCU.No longer response P keeps off key at this time, and other gears can normally shift gears.
Preferably, the vehicle includes shift plectrum, described to judge whether each gear breaks down specifically:
The shift plectrum is judged under R/N/D/S shifting state whether without response, if so, M keeps off failure.
And if only if selector when D is kept off, M-mode can be entered by operation plectrum, by "+" plectrum, gear increases, presses
"-" plectrum, gear reduce.For the voltage pulled open plus between gear and downshift, it is desirable that the resistor network logical table for adding and subtracting gear is as follows:
The present embodiment M+ gear and M- gear shift gears there are two plectrums by multi-functional steering wheel shift plectrum operation, are respectively
" +/- " is located at steering wheel, and driver will shift gears plectrum operation information, is connected to SCU by harness rigid line, SCU is detected
After " +/- " and judgement, TCU is sent to by message；TCU notifies gearbox to enter corresponding gear position according to the shift line of setting
Set (such as 4 gears)；Instrument is according to TCU actual gear value and targeted gear place value, display or scintillating target gear value.1, into hand
Dynamic plus-minus gear pattern (static OR dynamic indifference): when SCU is in D/M gear, driver can just pass through steering wheel
Locate "+"/"-", into M-mode (manual mode).Other gears stir "+"/in addition to D/M gear "-" in vain, SCU is not responding to also not
It sends；SCU is in D/M gear, but gearbox actual gear is not kept off in D/M, then SCU is not responding to the operation of this time shift plectrum；Together
When operation " +/- " when, in vain；Current SCU gear is kept off in D, presses " +/- " gear for the first time, operates plectrum key for the first time in D gear, first
It sends M and keeps off signal, after second operates plectrum, send+- gear signal；Current SCU gear is kept off in M, presses " +/- " gear for the first time,
Just directly transmit+- gear signal.2, exit plus-minus gear pattern manually: gear lever is under D gear --- and manipulation shift plectrum enters " M " mould
After formula, upper plectrum of dialling is " +/- " greater than 1 second again, exits " M " mode, SCU sends D to TCU and keeps off signal at this time；SCU is kept off in D
Under, manipulation shift plectrum enters " M " mode, at this time shift to SCU from D gear/R/N arbitrarily keeps off or presses P gear key, SCU is equal
M-mode is automatically exited from, and SCU current shift is issued by TCU by message.
If in tetra- gear plectrum failures of PRNDS, four gear shifts are still normal, but M can be kept off failure and be sent to
TCU。
Preferably, it further comprises the steps of:
Judge whether current shift is D gear after detecting M gear failure, if so, flashing D is with gear lamp.
R, N, D, M have with gear instruction function, are red with gear lamp, and backlight is white, are as follows: with gear lamp strategy
Note: backlight is directly controlled by BL+ (small lamp switch), cannot be dimmed.
After failure, if current shift is kept off in D, D is flashed with gear lamp；In other gears, will not flash with gear lamp.
Preferably, it further comprises the steps of:
If shifting gears under P gear state, judge whether to receive brake signal；
If receiving brake signal, judge whether the trigger signal for receiving solving locking key, if so, sending third prompt letter
Breath；
If being not received by brake signal, the 4th prompt information is sent.
The situation that the present embodiment touches on the brake when being swapped out by detection from P gear, support vehicles safety: if a) having stepped on brake
Vehicle, but do not press unlock key, then SCU transmission MisopertionHint=$ 4 should allow instrument to show and " such as want to TCU, TCU
Put into gear, unblock button please be press ", and prompt tone is issued with instrument.As long as b) not touching on the brake, no matter presses and do not press unlock
Key, SCU will send MisopertionHint=$ 3 allows instrument to show " shift need to step on brake pedal " to TCU, TCU, and companion
Prompt tone is issued with instrument.
In a kind of preferred embodiment of the present embodiment, in any gear, if continuing 60s detects that unlock key is pressed always
Under, then it is assumed that unlock key failure reports failure to TCU, but can normally shift gears, if after reporting unlock key failure, centre inspection
Measuring key has release, and the duration is greater than 20ms, then Failure elimination.
Correspondingly, the present embodiment also provides a kind of shifting control system, as shown in Figure 2, comprising:
Module 101 is obtained, for obtaining shift control signal；
Whether shift module 102, shifting state and vehicle speed information for detecting current vehicle reach the default shape of shift
State is shifted gears if so, controlling signal according to the shift；
Fault detection module 103, for judging whether each gear breaks down, if so, fault-signal is sent to
Gearbox control.
Fig. 9 is the present embodiment selector system hardware framework map, and shifting control system provided in this embodiment realizes low function
The effect of consumption: SCU and GBA is able to satisfy vehicle quiescent current≤0.6mA requirement.The handoff procedure of SCU suspend mode and wake-up is as follows
(being waken up based on KL15 rigid line):
Step1: when key electricity powers off (KL30 electricity/KL15 electricity → KL30 electricity), SCU judges whether to reach into P blend stop part
(speed≤3km/h), if reached, driving executing agency enters P gear；
Step2:SCU detects that GBA comes into P gear and postpones, and closes the power circuit of motor and Hall chip；
Step3: MCU and periphery peripheral hardware is made to enter Sleep mode
Note: if GBA 30s after the power-off of key electricity is still not returned to P gear (because can not receive after speed >=3km/h and 30s at that time
Speed message), MCU closes all peripheral hardwares and enters dormant state, and P gear hard signal remains non-P gear.Again one-key start is pressed
Afterwards, since vehicle can not start, KL15 is powered on, and after SCU initialization, should issue P gear network message and P gear rigid line output (P
Gear), and actuator returns to P gear.
The handoff procedure that 2.SCU wakes up is as follows
Step1: it when key electricity powers on (KL30 electricity → KL30 electricity/KL15 electricity), wakes up MCU internal module and works normally
EEPROM and peripheral hardware self-test pass through inside Step2:MCU,
Step3: gear message exports, under initial situation, before the numerical value for not determining sensor, it should send
ShifPosition=$ B, AMotoPositionSta=$ 4 indicates that SCU is initializing selector module and actuator control
Molding block
3. abnormal conditions handle logic: when power supply electricity and key electricity are all broken suddenly (KL30/KL15 electricity → without electricity), SCU
Any movement is not had, and with state consistency before powering off, when lower secondary source is electric and key electricity all powers on, SCU can first judge vehicle
Speed is less than 3km, if it is satisfied, then executing agency is withdrawn into P gear；If SCU judges that speed is greater than 3km, executing agency's dimension
Status is held, selector exports N and keeps off message.
4. under normal circumstances, it can not shift gears in the case where engine does not start, but if vehicle occur can not start,
And user wants to keep off change N gear from P, selector provides processing strategie in emergency circumstances, and operating procedure is as follows:
It slams brake not put, presses unlock, push down on bar on earth, keep 15s clock, selector shows N gear, holds
Row device keeps off from P and being detached from.
The present embodiment further includes fault detection capability:
CAN sends message, and SCU → TCU is only just sent in the case where KL15 is powered on；CAN receives message, ABS → SCU
At KL15 in electric 30s, this message is still received, until SCU enters sleep after meeting condition.It is electric under ECM → SCU, KL15
Afterwards, that is, stop the reception of this message；Under TCU → SCU, KL15 after electricity, that is, stop the reception of this message.
Shift control program provided in this embodiment passes through the current gear of monitoring vehicle when receiving shift control signal
Position state and vehicle speed information, to judge whether the preset state for reaching shift, reaching shift preset state is to shift gears, and is
The trip of vehicle provides the shift environment of safety, while whether detecting real-time gear breaks down, and substantially reduces the traveling of vehicle
Degree of danger, while user being facilitated to drive a vehicle.
Specific embodiment described herein is only to give an example to spirit.Technical field that the present invention belongs to
Technical staff can make various modifications or additions to the described embodiments or be substituted in a similar manner, but
Without departing from the spirit or beyond the scope defined by the appended claims of invention.
Claims (10)
1. a kind of shift control method, which is characterized in that comprising steps of
Obtain shift control signal；
Whether the shifting state and vehicle speed information for detecting current vehicle reach the preset state of shift, if so, being changed according to described
Gear control signal is shifted gears；
Judge whether each gear breaks down, if so, fault-signal is sent to gearbox control.
2. a kind of shift control method as described in claim 1, which is characterized in that the vehicle includes P, R, N, D, M and S gear
Position, P, S gear are key gear, and R, N, D, M are bar gear, wherein S keeps off signal and is sent to gearbox control by CAN bus
Device, and S gear signal operates effectively under D gear pattern.
3. a kind of shift control method as described in claim 1, which is characterized in that further comprise the steps of:
The location information of detection gear is incuded by angle Hall sensor.
4. a kind of shift control method as claimed in claim 3, which is characterized in that the angle Hall sensor uses double-core
Redundancy Design.
5. a kind of shift control method as claimed in claim 2, which is characterized in that the shifting state of the detection current vehicle
Whether reach the preset state of shift with vehicle speed information specifically:
Judge whether to receive the push button signalling that P is kept off, if so, judge whether current vehicle speed is greater than setting speed threshold value, if so,
The preset state and the first prompt information of sending not up to shifted gears；
Judge whether to receive the gear shifting signal of R gear, if so, judge current shift whether in D/M gear and current vehicle speed is greater than setting
Threshold speed is determined, if so, the preset state of not up to shift and the second prompt information of sending；
Judge whether to receive the gear shifting signal that D is kept off, if so, judging whether current shift keeps off in R and current vehicle speed is greater than setting
Threshold speed, if so, being not up to the preset state of shift and issuing third prompt information.
6. a kind of shift control method as claimed in claim 2, which is characterized in that described to judge whether each gear event occurs
Barrier specifically:
Judge whether to receive the push button signalling that P is kept off under non-P gear state, if so, it is default to judge whether current vehicle speed is greater than
Threshold speed judges whether persistently receive P gear in preset time period if so, current shift is kept to continue preset time period
Push button signalling and speed are greater than pre-set velocity threshold value, if so, P keeps off failure；If current vehicle speed is less than pre-set velocity threshold value, sentence
The push button signalling that P gear whether is persistently received in disconnected preset time period, if so, P keeps off failure；
The push button signalling that P gear whether is persistently received in preset time period is judged under P gear state, if so, P keeps off failure；
Fault-signal is sent to gearbox control, the gearbox control no longer responds P gear key.
7. a kind of shift control method as claimed in claim 2, which is characterized in that the vehicle includes shift plectrum, described
Judge whether each gear breaks down specifically:
The shift plectrum is judged under R/N/D/S shifting state whether without response, if so, M keeps off failure.
8. a kind of shift control method as claimed in claim 7, which is characterized in that further comprise the steps of:
Judge whether current shift is D gear after detecting M gear failure, if so, flashing D is with gear lamp.
9. a kind of shift control method as described in claim 1, which is characterized in that further comprise the steps of:
If shifting gears under P gear state, judge whether to receive brake signal；
If receiving brake signal, judge whether the trigger signal for receiving solving locking key, if so, sending third prompt information；
If being not received by brake signal, the 4th prompt information is sent.
10. a kind of shifting control system characterized by comprising
Module is obtained, for obtaining shift control signal；
Whether shift module, shifting state and vehicle speed information for detecting current vehicle reach the preset state of shift, if so,
Then signal is controlled according to the shift to shift gears；
Fault detection module, for judging whether each gear breaks down, if so, fault-signal is sent to gearbox control
Device processed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811168123.0A CN109572700A (en) | 2018-10-08 | 2018-10-08 | A kind of shift control method and system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811168123.0A CN109572700A (en) | 2018-10-08 | 2018-10-08 | A kind of shift control method and system |
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| CN109572700A true CN109572700A (en) | 2019-04-05 |
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| CN115111359A (en) * | 2022-01-07 | 2022-09-27 | 长城汽车股份有限公司 | Control method and device for new energy vehicle gearbox, vehicle and storage medium |
| CN115143281A (en) * | 2021-03-31 | 2022-10-04 | 广州汽车集团股份有限公司 | Control method and device for gear indicator lamp |
| CN115289211A (en) * | 2022-08-02 | 2022-11-04 | 奇瑞汽车股份有限公司 | Vehicle gear shifting method and device, vehicle and storage medium |
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| CN115143281A (en) * | 2021-03-31 | 2022-10-04 | 广州汽车集团股份有限公司 | Control method and device for gear indicator lamp |
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