CN107351820B - A kind of automatic releasing control method of vehicle electronic parking - Google Patents
A kind of automatic releasing control method of vehicle electronic parking Download PDFInfo
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- CN107351820B CN107351820B CN201710513424.1A CN201710513424A CN107351820B CN 107351820 B CN107351820 B CN 107351820B CN 201710513424 A CN201710513424 A CN 201710513424A CN 107351820 B CN107351820 B CN 107351820B
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- signal
- output torque
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- drive shaft
- epb
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T7/00—Brake-action initiating means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K28/00—Safety devices for propulsion-unit control, specially adapted for, or arranged in, vehicles, e.g. preventing fuel supply or ignition in the event of potentially dangerous conditions
- B60K28/10—Safety devices for propulsion-unit control, specially adapted for, or arranged in, vehicles, e.g. preventing fuel supply or ignition in the event of potentially dangerous conditions responsive to conditions relating to the vehicle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
- B60T17/18—Safety devices; Monitoring
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T2270/00—Further aspects of brake control systems not otherwise provided for
- B60T2270/40—Failsafe aspects of brake control systems
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Control Of Driving Devices And Active Controlling Of Vehicle (AREA)
Abstract
The invention discloses a kind of automatic releasing control methods of vehicle electronic parking, belong to field of automobile control, successively the following steps are included: starting automobile；EPB controller obtains various desired signals；Drive shaft output torque increases, when EPB controller judges that drive shaft output torque reaches calibration value: when main driving closing of the door and pilot harness, which have fastened, to be all satisfied, EPB controller issues the release of order request control device, and vehicle realizes driveaway operation；When main driving closing of the door and pilot harness have fastened wherein one or two while when being unsatisfactory for, or other coherent signals or hardware in addition to increasing drive shaft output torque break down, EPB controller will be issued to VCU controller reduces torque request, and VCU controller reduces the output torque of power drive unit.The present invention protects control device not destroy because power device output torque is excessive；Fuel or energy are saved, vehicle course continuation mileage is extended；Protect power device.
Description
Technical field
The invention belongs to field of automobile control more particularly to automotive electronic parking systems.
Background technique
Current a part of vehicle begins to use electronic parking system, abbreviation EPB (Electrical park brake).
Wherein having a function is to discharge automatically, i.e., when vehicle becomes dynamic from static state, discharging parking under normal circumstances is needed
It to release manually, but when executing automatic release function, without releasing manually, but be judged by EPB controller, work as release conditions
(caliper is in clamped condition, gear switchs no pull-up in drive shift or reverse gear, EPB or presses, main driving car door when meeting
Close, driver fastens one's safety belt), by driver's bend the throttle, when drive shaft output torque is greater than calibration value, EPB
Controller issues order request to executing agency and discharges parking, and vehicle realizes driveaway operation.
It is had the following disadvantages in such control logic:
1) it does not fasten the safety belt or main driving closing of the door but does not close due to forgetting etc. driver habit or for the moment
Tightly, bend the throttle at this time, as tread depths increase, drive shaft output torque can increase always, be greater than when it increases to
When setting value, parking should be discharged by EPB control order parking actuator at this time, but due to the peace in release parking condition
Full band project does not meet and (do not fasten the safety belt) or main driving vehicle gate ajar, and halting mechanism does not discharge always, works as accelerator pedal
Depth continues to increase, and drive shaft output torque will continue growing, and is thus likely to cause control device damage.
2) waste of energy or fuel；
Accelerator pedal depth continues to increase, and drive shaft output torque can increase always, when it, which increases to, is greater than the set value,
Since main driving safety belt is not fastened or driver side vehicle gate ajar, it is unsatisfactory for release parking condition, vehicle is in original place,
But power constantly exports, and leads to oil consumption increase or power battery energy consumption, reduces course continuation mileage.
3) power device is damaged
Due to continuing to increase with accelerator pedal depth, (driving motor is only the driving motor in power drive unit
A part in force driving device) electric current can increase always, and parking actuator does not discharge, and it is stifled to will lead to driving motor generation
Turn, driving motor coil or machine components are burnt out when serious.
Summary of the invention
It is an object of the invention to: in view of the problems of the existing technology, propose that a kind of vehicle electronic parking is released automatically
Place control method protects control device not destroy because drive shaft output torque is excessive；Fuel or energy are saved, vehicle is extended
Course continuation mileage；Protect power device.
The object of the invention is realized by following technical proposals:
A kind of automatic releasing control method of vehicle electronic parking, including following signal and hardware: caliper status signal,
Gear signal, EPB switch state signal, main driving closing of the door signal, driver safety band signal, accelerator pedal signal, drive
Moving axis output torque signal, IGN signal, EPB controller, control device, drive shaft output torque controller of actuating and power
Driving device, successively the following steps are included:
The first step, driver slam brake pedal, start automobile；
Second step, caliper caliper status signal in clamped condition, gear are believed in the gear of advance or backward gear
Number, the EPB switch state signal of EPB switch in the raw, the main driving closing of the door signal of main driving closing of the door is driven
The driver safety band signal that the person's of sailing safety belt has been fastened, drive shaft output torque signal and IGN IGN on state
Signal；
Third step, driver loosen the brake, bend the throttle, and what EPB controller acquisition accelerator pedal was stepped on adds
Speed pedal signal, drive shaft output torque increases, when EPB controller judges that drive shaft output torque reaches calibration value: working as master
The driver safety band signal that the main driving closing of the door signal and pilot harness for driving closing of the door have been fastened is all satisfied
When, EPB controller issues the release of order request control device, and vehicle realizes driveaway operation；When main driving closing of the door
The driver safety band signal that main driving closing of the door signal and pilot harness have fastened wherein one or two while not
When meeting or other except make drive shaft output torque increase in addition to coherent signal or hardware break down when, EPB controller
To issue to drive shaft output torque controller of actuating reduces torque request, and drive shaft output torque controller of actuating reduces power drive
The output torque of device.
Alternatively, drive shaft output torque controller of actuating is VCU controller.Drive shaft output torque is by VCU herein
Controller control, if drive shaft output torque is controlled by other controllers, is controlled by corresponding controllers.
The foregoing main solution of the present invention and further alternatives thereof can be freely combined to form multiple schemes, be this
Invention can be used and claimed scheme；And it is of the invention, between (each non conflicting selection) selection and between other selections
It can also be freely combined.Those skilled in the art, which can be illustrated after understanding the present invention program according to the prior art and common knowledge, to be had
Multiple combinations are the claimed technical solution of the present invention, do not do exhaustion herein.
The course of work are as follows: in the present invention, when the main driving closing of the door signal and driver safety of main driving closing of the door
The driver safety band signal that band has been fastened wherein one or two while when being unsatisfactory for or other are except turning round drive shaft output
When coherent signal or hardware other than square increasing break down, judge that drive shaft output torque reaches calibration value in EPB controller
When, EPB controller will (drive shaft output torque be controlled by VCU controller herein, if drive shaft exports to VCU controller
Torque is controlled by other controllers, then is controlled by corresponding controllers) reduction torque request is issued, VCU controller reduces power
The output torque of driving device, realization protect control device not to be damaged.
Beneficial effects of the present invention:
1, when driver's peace that the main driving closing of the door signal of main driving closing of the door and pilot harness have fastened
Full band signal wherein one or two simultaneously when being unsatisfactory for or other related letters in addition to increasing drive shaft output torque
Number or hardware break down when, continue increase accelerator pedal aperture, control device will not be damaged；
2, power device is protected；
3, oil consumption or energy consumption are reduced, to increase course continuation mileage.
Detailed description of the invention
Fig. 1 is the device flow diagram of the embodiment of the present invention；
Fig. 2 is the logic control process block diagram of the embodiment of the present invention；
Wherein 1, caliper status signal；2, gear signal；3, EPB switch state signal；4, main driving closing of the door is believed
Number；5, driver safety band signal；6, accelerator pedal signal；7, drive shaft output torque signal；8, IGN signal；9, EPB is controlled
Device；10, control device；11, VCU controller；12, power drive unit.
Specific embodiment
Following non-limiting examples are for illustrating the present invention.
With reference to shown in Fig. 1,2, a kind of automatic releasing control method of vehicle electronic parking, including following signal and hardware:
1, caliper status signal；2, gear signal；3, EPB switch state signal；4, main driving closing of the door signal；5, driver pacifies
Full band signal；6, accelerator pedal signal；7, drive shaft output torque signal；8, IGN (igniting) signal；9, EPB controller；10,
Control device；11, VCU controller (entire car controller)；12, power drive unit, control method successively include following step
It is rapid:
The first step, driver slam brake pedal, start automobile；
Second step, the acquisition of EPB controller 9 (typically directly obtain from CAN bus, directly can also connect EPB by conducting wire
Controller and signal source obtain) caliper caliper status signal 1 in clamped condition, gear is in advance or the shelves of backward gear
Position signal 2, the EPB switch state signal 3 of EPB switch in the raw, the main driving closing of the door of main driving closing of the door
Signal 4, the driver safety band signal 5 that pilot harness has fastened, the torque signals 7 and IGN of drive shaft output torque
IGN on state believes No. 8；
Third step, driver loosen the brake, bend the throttle, and what the acquisition accelerator pedal of EPB controller 9 was stepped on adds
Speed pedal signal 6, the signal value that 12 drive shaft output torque signal 7 of power drive unit issues increase, sentence in EPB controller 9
When the signal value that disconnected drive shaft output torque 7 issues reaches calibration value: when the main driving closing of the door of main driving closing of the door is believed
Numbers 4 and the driver safety band signal 5 fastened of pilot harness when being all satisfied (and other safety conditions are full in second step
Foot), EPB controller 9 issues order request control device 10 and discharges, and vehicle realizes driveaway operation；When main driving car door closes
The driver safety band signal 5 that the main driving closing of the door signal 4 closed and pilot harness have fastened wherein one or two
Simultaneously when being unsatisfactory for (and other safety conditions are all satisfied in second step) or other in addition to increasing drive shaft output torque
Coherent signal or hardware break down when, EPB controller 9 will to VCU controller 11 (herein drive shaft output torque be by
The control of VCU controller, if drive shaft output torque is controlled by other controllers, is controlled by corresponding controllers) issue drop
Low torque request, VCU controller 11 reduce power drive unit 12 output torque, realization protect control device 10 not by
Damage.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (2)
1. a kind of automatic releasing control method of vehicle electronic parking, including following signal and hardware: caliper status signal, shelves
Position signal, EPB switch state signal, main driving closing of the door signal, driver safety band signal, accelerator pedal signal, driving
Axis output torque signal, IGN signal, EPB controller, control device, drive shaft output torque controller of actuating and power drive
Dynamic device, it is characterised in that successively the following steps are included:
The first step, driver slam brake pedal, start automobile；
Second step, EPB controller obtain caliper caliper status signal in clamped condition, and gear is in advance or backward gear
Gear signal, EPB switch EPB switch state signal in the raw, the main driving car door of main driving closing of the door closes
Signal, the driver safety band signal that pilot harness has fastened are closed, drive shaft output torque signal and IGN are in ON
The IGN signal of state；
Third step, driver loosen the brake, bend the throttle, and EPB controller obtains the acceleration that accelerator pedal is stepped on and steps on
Partitioned signal, drive shaft output torque increases, when EPB controller judges that drive shaft output torque reaches calibration value: when main driving vehicle
When the driver safety band signal that the main driving closing of the door signal and pilot harness that door is closed have been fastened is all satisfied, EPB
Controller issues the release of order request control device, and vehicle realizes driveaway operation；When the main driving of main driving closing of the door
The driver safety band signal that closing of the door signal and pilot harness have fastened wherein one or two while when being unsatisfactory for,
Or when other coherent signals or hardware failures in addition to increasing drive shaft output torque, EPB controller will be to drive
Moving axis output torque controller of actuating, which issues, reduces torque request, and drive shaft output torque controller of actuating reduces power drive unit
Output torque.
2. the automatic releasing control method of vehicle electronic parking as described in claim 1, it is characterised in that: drive shaft output is turned round
Square control device is VCU controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710513424.1A CN107351820B (en) | 2017-06-29 | 2017-06-29 | A kind of automatic releasing control method of vehicle electronic parking |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710513424.1A CN107351820B (en) | 2017-06-29 | 2017-06-29 | A kind of automatic releasing control method of vehicle electronic parking |
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| Publication Number | Publication Date |
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| CN107351820A CN107351820A (en) | 2017-11-17 |
| CN107351820B true CN107351820B (en) | 2019-05-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710513424.1A Active CN107351820B (en) | 2017-06-29 | 2017-06-29 | A kind of automatic releasing control method of vehicle electronic parking |
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Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108357481B (en) * | 2018-02-02 | 2019-11-22 | 威马智慧出行科技（上海）有限公司 | Prevent electronic parking control method, the apparatus and system of caliper damage |
| CN108909693B (en) * | 2018-04-02 | 2020-05-19 | 浙江吉利控股集团有限公司 | Safety protection system and method for passengers to get on or off bus |
| CN108501925B (en) * | 2018-04-16 | 2019-11-05 | 江铃控股有限公司 | Electronic brake system discharges the control method and system of parking automatically |
| US11186262B2 (en) * | 2018-10-11 | 2021-11-30 | Bendix Commercial Vehicle Systems Llc | System and method for controlling compounding in a brake actuator |
| CN109398333B (en) * | 2018-10-22 | 2020-07-03 | 北京长城华冠汽车科技股份有限公司 | Starting release control method and starting release control system |
| CN110748642B (en) * | 2019-10-31 | 2021-11-19 | 威马智慧出行科技（上海）有限公司 | Automobile P-gear parking control method, electronic equipment and automobile |
| CN113306407B (en) * | 2020-02-27 | 2023-06-20 | 北京新能源汽车股份有限公司 | Control method for torque output during parking and starting, motor controller and automobile |
| CN111775911A (en) * | 2020-07-28 | 2020-10-16 | 华晨鑫源重庆汽车有限公司 | Parking processing method based on EPB system |
| CN114074662B (en) * | 2020-08-13 | 2024-09-10 | 长城汽车股份有限公司 | Method and device for controlling driver dislocation of vehicle |
| CN111959512B (en) * | 2020-08-25 | 2023-03-31 | 重庆长安汽车股份有限公司 | New energy automobile in-situ parking control method, device and system and automobile |
| CN114572006A (en) * | 2021-03-29 | 2022-06-03 | 长城汽车股份有限公司 | Control method and device of electronic parking system and vehicle |
| CN115031017B (en) * | 2021-11-19 | 2023-10-27 | 长城汽车股份有限公司 | Transfer case 4L mode switching control method and device and vehicle |
| CN114291014A (en) * | 2022-01-05 | 2022-04-08 | 浙江吉利控股集团有限公司 | Parking release method, parking release device, vehicle and storage medium |
| CN115431978A (en) * | 2022-09-01 | 2022-12-06 | 广州汽车集团股份有限公司 | Vehicle control method, device, medium and equipment |
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| CN107351820A (en) | 2017-11-17 |
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