CN106184164A - Parking control method on vehicle slope - Google Patents
Parking control method on vehicle slope Download PDFInfo
- Publication number
- CN106184164A CN106184164A CN201610861535.7A CN201610861535A CN106184164A CN 106184164 A CN106184164 A CN 106184164A CN 201610861535 A CN201610861535 A CN 201610861535A CN 106184164 A CN106184164 A CN 106184164A
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- China
- Prior art keywords
- parking
- vehicle
- epp
- epb
- parking system
- 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
- 238000000034 method Methods 0.000 title claims abstract description 16
- 238000001514 detection method Methods 0.000 claims description 3
- 238000011217 control strategy Methods 0.000 abstract description 2
- 230000002159 abnormal effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 241000406668 Loxodonta cyclotis Species 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 210000000003 hoof Anatomy 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
-
- 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
- B60T7/12—Brake-action initiating means for automatic initiation; for initiation not subject to will of driver or passenger
-
- 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
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/18—Conjoint control of vehicle sub-units of different type or different function including control of braking systems
- B60W10/184—Conjoint control of vehicle sub-units of different type or different function including control of braking systems with wheel brakes
-
- 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
- B60W30/18—Propelling the vehicle
- B60W30/18009—Propelling the vehicle related to particular drive situations
- B60W30/18109—Braking
- B60W30/18118—Hill holding
-
- 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
- B60T2201/00—Particular use of vehicle brake systems; Special systems using also the brakes; Special software modules within the brake system controller
- B60T2201/04—Hill descent control
-
- 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
- B60T2210/00—Detection or estimation of road or environment conditions; Detection or estimation of road shapes
- B60T2210/20—Road shapes
-
- 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
- B60W2510/00—Input parameters relating to a particular sub-units
- B60W2510/10—Change speed gearings
- B60W2510/1005—Transmission ratio engaged
-
- 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
- B60W2552/00—Input parameters relating to infrastructure
- B60W2552/15—Road slope, i.e. the inclination of a road segment in the longitudinal direction
-
- 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
- B60W2710/00—Output or target parameters relating to a particular sub-units
- B60W2710/18—Braking system
- B60W2710/186—Status of parking brakes
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Automation & Control Theory (AREA)
- Regulating Braking Force (AREA)
- Devices For Checking Fares Or Tickets At Control Points (AREA)
- Vehicle Body Suspensions (AREA)
Abstract
The present invention relates to vehicle automation field, particularly relate to parking control method on a kind of slope.Parking control method on a kind of vehicle slope, when vehicle horizontal tilt angle exceedes ramp angles threshold value: from driving states to parking lock state, first with EPB parking system, vehicle is carried out locking operation, waiting delay time, parking signal is sent to EPP parking system and vehicle is carried out locking operation by entire car controller again；When parking lock state to driving states, after brake pedal is stepped on, entire car controller first controls EPP parking system and unlocks, then is unlocked by EPB parking system.The present invention detects grade signal by EPB electronic parking system, it is then transferred to whole-control system, whole-control system is further according to grade signal and the difference of gear, knot parked state, and the state value of parking switch, take different control strategies respectively, send EPP to and realize locking and unlocking function, avoid ramp to unlock the generation of catching phenomenon, improve the reliability of vehicle performance.
Description
Technical field
The present invention relates to vehicle automation field, particularly relate to parking control method on a kind of slope.
Background technology
EPP is the abbreviation of Electric Parking Pawl, and Chinese entitled electronic parking ratchet, including axis of wheel rotation
Gear, ratchet and parking cam, described parking cam is furnished with cam spring, and described ratchet is furnished with return spring；Parking: rely on electricity
Machine drives parking cam rotation, and parking cam is by the clearance between gear teeth of ratchet jacking vehicle wheel rotation shaft gear, it is achieved parking, as run into
Ratchet just withstands on gear teeth tooth top, then ratchet retroaction and cam, and by compression, cam angle degree keeps constant to cam spring, waits
Rotary shaft pinion rotation, ratchet waits for an opportunity to stick into clearance between gear teeth, it is achieved parking.Unlock: rely on motor to rotate backward certain angle, make
Cam returns to initial position, and ratchet exits clearance between gear teeth under return spring effect, it is achieved unlock；
EPB is the abbreviation of Electric Parking Brake, Chinese entitled electronic parking.Its operation principle of electronic parking and machine
Tool formula parking brake is identical, is all to be braked by cable pull rear wheel brake hoof.
The most most commercial car parking systems all realize parking purpose by EPB system or EPP system.On level land
Or only use EPP system just can realize the effect of parking and unblock with comparalive ease on the car that relatively delays of the gradient, but work as the gradient
The when of more than certain value, owing to commercial car vehicle body is more a lot of than common passenger car weight, the external force that complete vehicle weight produces is passed through
Power train acts directly in EPP frame for movement.When parking and braking, EPP motor is needed to produce sufficiently large moment of torsion by force
Make lockable mechanism occlusion or disengage, the most only by EPP parking system cannot realize unlock purpose, although or achieve unblock but
It is to cause bigger abnormal sound.Although and simply use EPB system abnormal sound can be much smaller, but parking effect can be little compared with EPP very
Many, when the gradient is bigger, easy rollback.
Summary of the invention
The technical problem to be solved is to provide parking control method on a kind of vehicle slope, to solve prior art
In along with the increase of tare, easily on ramp clamping stagnation thus cause unlocking unsuccessfully, it is impossible to the problem of traveling.
The present invention is achieved in that parking control method on a kind of vehicle slope, and this vehicle comprises EPB and EPP two set and stays
Vehicle control, described EPB parking system and EPP parking system are controlled by entire car controller, set ramp angles threshold value
And delay time, when vehicle horizontal tilt angle is less than ramp angles threshold value, entire car controller parking strategy routinely enters
Row parking controls；
When vehicle horizontal tilt angle exceedes ramp angles threshold value time-division the following two kinds situation:
When driving states to parking lock state, i.e. vehicle becomes P shelves, first with EPB parking system, vehicle is carried out locking behaviour
Making, wait delay time, parking signal is sent to EPP parking system and vehicle is carried out locking operation by entire car controller again；
When parking lock state to driving states, i.e. automobile gear level is when P shelves become other gears, steps at brake pedal
After, entire car controller first controls EPP parking system and unlocks, and waits delay time, then is unlocked by EPB parking system.
It is that entire car controller is according to vehicle shelves that described entire car controller parking strategy routinely carries out the mode of parking control
Position signal directly controls EPP parking system and carries out locking and unblock, and i.e. when vehicle is in P shelves, vehicle control unit controls EPP is stayed
Car system carries out locking operation to vehicle, and when vehicle is not at P shelves, vehicle control unit controls EPP parking system unlocks.
Described ramp angles threshold value is 7 °.
Described delay time is 0.5～2 second.
The ramp sensor detection that described vehicle horizontal tilt angle utilizes EPB parking system to carry obtains.
On vehicle slope of the present invention, parking control method detects grade signal by EPB electronic parking system, is then transferred to
Whole-control system, whole-control system is further according to grade signal and the difference of gear, knot parked state, and parking switch
State value, takes different control strategies respectively, sends EPP to and realizes locking and unlocking function, it is to avoid it is existing that ramp unlocks clamping stagnation
The generation of elephant, improves the reliability of vehicle performance；Contrasting through real vehicle, under full-load conditions, original parking system works as slope
Degree signal is when about 7%, and parking and unblock all can realize, but have bigger abnormal sound when unlocking.When ramp signal is left 12%
Time right, parking is it is achieved that but unlock meeting failure.And after using the method for the present invention, ramp signal below 25%, parking
All can realize smoothly with unlocking, and abnormal sound greatly reduces.
Accompanying drawing explanation
Fig. 1 is that conventional parking strategy used in the embodiment of the present invention controls logic diagram；
Fig. 2 is the control system block diagram of parking control method on vehicle slope of the present invention；
Fig. 3 is the logic diagram carrying out parking lock control in the present invention when ramp exceedes threshold value；
Fig. 4 is the logic diagram carrying out parking solution lock control in the present invention when ramp exceedes threshold value.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is expanded on further.Should be understood that these embodiments are merely to illustrate the present invention
Rather than restriction the scope of the present invention.In addition, it is to be understood that after having read the content of present invention statement, people in the art
The present invention can be made various changes or modifications by member, and these equivalent form of values fall within the application appended claims equally and limited
Scope.
Embodiment 1
EPB parking system used by the present invention is to utilize frictional force to compress wheel or the parking device of axis of wheel rotation, such as, stop
Car sheet, brake shoe, machinery clamp etc..
Parking control method on a kind of vehicle slope, this vehicle comprises EPB and EPP two and overlaps parking control system, and described EPB stays
Car system and EPP parking system are controlled by entire car controller, set ramp angles threshold value and delay time, in the present invention
As preferably, described ramp angles threshold value is 7 °, and described delay time is 0.5～2 second, and described vehicle horizontal tilt angle utilizes
The ramp sensor detection that EPB parking system carries obtains；
When vehicle horizontal tilt angle is less than ramp angles threshold value, entire car controller parking strategy routinely carries out parking control
System；
In the present embodiment, described conventional parking strategy is usually as it is shown in figure 1, P shelves are the park position of vehicle, entire car controller
VCU directly controls EPP parking system according to automobile gear level signal and carries out locking and unblock, i.e. the car load control when vehicle is in P shelves
Device processed controls EPP parking system and vehicle is carried out locking operation, the vehicle control unit controls EPP parking when vehicle is not at P shelves
System unlocks, and now EPB system is not involved in parking control；But the claimed technical scheme of the present invention is also not excluded for using other
Conventional parking strategy is controlled, such as, carry out parking only with EPB system, and EPP system is not involved in, or EPB system and EPP
System order in no particular order carries out parking action simultaneously.
When vehicle horizontal tilt angle exceedes ramp angles threshold value, control mode as shown in Figure 2 is used to be controlled, this
In embodiment, described delay time is set as 0.5 second, concrete point of the following two kinds situation:
As it is shown on figure 3, when driving states to parking lock state, i.e. vehicle becomes P shelves, first with EPB parking system to vehicle
Carrying out locking operation, time delay 0.5 second, parking signal is sent to EPP parking system by entire car controller VCU again, it is achieved to car
Locking operation, complete parked state；
As shown in Figure 4, when parking lock state to driving states, i.e. automobile gear level is when P shelves become other gears, in braking
After pedal is stepped on, EPP parking system is first unlocked by entire car controller VCU, time delay 0.5 second, then is unlocked by EPB parking system.
Claims (5)
1. a parking control method on vehicle slope, this vehicle comprises EPB and EPP two and overlaps parking control system, described EPB parking
System and EPP parking system are controlled by entire car controller, it is characterized in that: set ramp angles threshold value and delay time, when
When vehicle horizontal tilt angle is less than ramp angles threshold value, entire car controller parking strategy routinely carries out parking control；
When vehicle horizontal tilt angle exceedes ramp angles threshold value time-division the following two kinds situation:
When driving states to parking lock state, i.e. vehicle becomes P shelves, first with EPB parking system, vehicle is carried out locking behaviour
Making, wait delay time, parking signal is sent to EPP parking system and vehicle is carried out locking operation by entire car controller again；
When parking lock state to driving states, i.e. automobile gear level is when P shelves become other gears, steps at brake pedal
After, entire car controller first controls EPP parking system and unlocks, and waits delay time, then is unlocked by EPB parking system.
2. parking control method on vehicle slope as claimed in claim 1, is characterized in that: the parking routinely of described entire car controller
It is that entire car controller directly controls EPP parking system according to automobile gear level signal and carries out locking that strategy carries out the mode of parking control
And unblock, i.e. when vehicle is in P shelves, vehicle control unit controls EPP parking system carries out locking operation to vehicle, when vehicle not
When being in P shelves, vehicle control unit controls EPP parking system unlocks.
3. parking control method on vehicle slope as claimed in claim 1 or 2, is characterized in that: described ramp angles threshold value is 7 °
To 15 °.
4. parking control method on vehicle slope as claimed in claim 1 or 2, is characterized in that: described delay time is 0.5～2
Second.
5. parking control method on vehicle slope as claimed in claim 1 or 2, is characterized in that: described vehicle horizontal tilt angle
The ramp sensor detection utilizing EPB parking system to carry obtains.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610861535.7A CN106184164A (en) | 2016-09-29 | 2016-09-29 | Parking control method on vehicle slope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610861535.7A CN106184164A (en) | 2016-09-29 | 2016-09-29 | Parking control method on vehicle slope |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106184164A true CN106184164A (en) | 2016-12-07 |
Family
ID=57520716
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610861535.7A Pending CN106184164A (en) | 2016-09-29 | 2016-09-29 | Parking control method on vehicle slope |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106184164A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109910887A (en) * | 2019-03-01 | 2019-06-21 | 国机智骏科技有限公司 | Uphill control method, device, entire car controller and vehicle |
| CN110126794B (en) * | 2018-02-08 | 2020-06-09 | 上海汽车变速器有限公司 | New energy pure electric integrated driving device and parking control strategy thereof |
| CN114135666A (en) * | 2020-09-04 | 2022-03-04 | 广州汽车集团股份有限公司 | Electronic P-gear-based parking method and electronic P-gear control system |
| CN114684082A (en) * | 2022-03-11 | 2022-07-01 | 潍柴动力股份有限公司 | Parking control method and device, electronic equipment and storage medium |
| CN117184011A (en) * | 2023-10-18 | 2023-12-08 | 格陆博科技有限公司 | Hill starting auxiliary device and method for EPB combined manual-gear vehicle |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110126794B (en) * | 2018-02-08 | 2020-06-09 | 上海汽车变速器有限公司 | New energy pure electric integrated driving device and parking control strategy thereof |
| CN109910887A (en) * | 2019-03-01 | 2019-06-21 | 国机智骏科技有限公司 | Uphill control method, device, entire car controller and vehicle |
| CN114135666A (en) * | 2020-09-04 | 2022-03-04 | 广州汽车集团股份有限公司 | Electronic P-gear-based parking method and electronic P-gear control system |
| CN114135666B (en) * | 2020-09-04 | 2023-04-25 | 广州汽车集团股份有限公司 | Parking method based on electronic P gear and electronic P gear control system |
| CN114684082A (en) * | 2022-03-11 | 2022-07-01 | 潍柴动力股份有限公司 | Parking control method and device, electronic equipment and storage medium |
| CN114684082B (en) * | 2022-03-11 | 2023-07-18 | 潍柴动力股份有限公司 | Parking control method and device, electronic equipment and storage medium |
| CN117184011A (en) * | 2023-10-18 | 2023-12-08 | 格陆博科技有限公司 | Hill starting auxiliary device and method for EPB combined manual-gear vehicle |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20161207 |
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