CN109866749A - A kind of electronic parking system and its release parking control method - Google Patents
A kind of electronic parking system and its release parking control method Download PDFInfo
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- CN109866749A CN109866749A CN201910171744.2A CN201910171744A CN109866749A CN 109866749 A CN109866749 A CN 109866749A CN 201910171744 A CN201910171744 A CN 201910171744A CN 109866749 A CN109866749 A CN 109866749A
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Abstract
The present invention provides a kind of releasing parking control methods, comprising: obtains the brake pedal signal that at least two control modules detect；The brake pedal signal detected in response to any control module meets the parking condition that releases, and whether identification parking switch is closed；It is closed in response to the parking switch, generates and release parking order；And the releasing parking order is executed to release parking.
Description
Technical field
The present invention relates to a kind of vehicle control system more particularly to a kind of electronic parking system and its release parking controlling party
Method.
Background technique
With the continuous development of information-based electronization, many vehicle manufacturers also start to generate with electronic parking at present
The vehicle of system (Electrical park brake, EPB).Electronic parking system realizes traditional hand by intelligent means
The function of brake, and original mechanical parking brake is concentrated to an electronic button, enormously simplify driver start brake or
The movement of brake is closed, the user experience is improved.
However, will affect its normal work ability when key signal failure of the electronic parking system needed for it, more often
See to be to be unable to parking or cannot release parking.For being unable to for parking, normal vehicle operation is had no effect on, and parking can also
To realize parking using a variety of other means, for example unclamp throttle and brake pedal etc., thus be unable to parking for
More serious consequence can't be generated for driver and passenger.And for that cannot release for parking, then compare
Trouble.The vehicle that parking cannot be released can not may move completely, will seriously affect the use body of driver and passenger
It tests.
The method that existing electronic parking system releases parking are as follows: brake pedal is first to prevent vehicle from releasing parking
Not car slipping afterwards, then presses closing parking switch, and vehicle releases parking.
It realizes that above-mentioned releasing parking method judges whether brake pedal is operated firstly the need of electronic parking system, releases
It can just be carried out after car slipping hidden danger in next step.Among these, brake pedal signal is key signal, in the prior art generally by electronics
Stability contorting module (Electrical Stability Center) detects brake pedal signal and is transmitted to electronic parking system
System.It breaks down when the detection of electronic stability control module or when brake pedal signal breaks down in transmission process, electricity
Sub- parking system can not obtain correct brake pedal signal, even if driver's brake pedal, electronic parking system
Parking can not be released.
Therefore, to solve the failure problems that brake pedal signal is likely to occur in detection or transmission process, the present invention is mentioned
For a kind of electronic parking system and its release parking control method.
Summary of the invention
In order to overcome drawbacks described above, the present invention is intended to provide a kind of electronic parking system and its releasing parking control method.
According to an aspect of the present invention, a kind of releasing parking control method is provided, comprising:
Obtain the brake pedal signal that at least two control modules detect；
The brake pedal signal detected in response to any control module meets the parking condition that releases, and identification parking switch is
It is no to be closed；
It is closed in response to the parking switch, generates and release parking order；And
The releasing parking order is executed to release parking.
Further, at least two control module includes electronic stability control module and car body control module.
Further, the brake pedal signal that at least two control module detects further includes the inspection of pressure detecting module
The pressure signal in brake fluid measured.
Further, the brake fluid includes in master cylinder master cylinder, in wheel cylinder wheel cylinder or is set to the braking and leads
Brake fluid between cylinder master cylinder and the wheel cylinder wheel cylinder in the brake piping of any position.
Further, the releasing parking control method further include:
The brake pedal signal instruction brake pedal detected in response to any control module is operated, and judges the braking
Pedal signal, which meets, releases parking condition.
Further, the releasing parking control method further include:
Vehicle is activated when being in parked state in response to vehicle, receives the system that at least two control module detects
Dynamic pedal signal.
Further, the releasing parking control method further include:
In response to caliper, in clamped condition and parking switch is in the open state, judges that the vehicle is in parking shape
State.
According to another aspect of the present invention, a kind of electronic parking system is provided, comprising:
Controller, the controller, which is formulated into, obtains the brake pedal signal that at least two control modules detect, rings
The parking condition that releases should be met in the brake pedal signal that any control module detects, whether identification parking switch is closed,
And be closed in response to the parking switch, it generates and releases parking order；And
Executing agency couples with the controller, receives and execute the releasing parking order to release parking.
Further, at least two control module includes at least electronic stability control module and Body Control mould
Block.
Further, at least two control module further includes pressure detecting module, and the pressure detecting module is used for
Detect the pressure signal in brake fluid.
Further, the pressure detecting module includes at least one pressure sensor, and the pressure sensor is set to
In master cylinder master cylinder, in wheel cylinder wheel cylinder or the master cylinder master cylinder to any position between the wheel cylinder wheel cylinder braking
The pressure signal of the brake fluid at its present position is obtained on pipeline.
Further, the controller is also made into:
The brake pedal signal instruction brake pedal detected in response to any control module is operated, and judges the braking
Pedal signal, which meets, releases parking condition.
Further, the controller is also made into:
Vehicle is activated when being in parked state in response to vehicle, receives the system that at least two control module detects
Dynamic pedal signal.
Further, the controller is also made into:
In response to caliper, in clamped condition and parking switch is turned on, and judges that the vehicle is in parked state.
Detailed description of the invention
After the detailed description for reading embodiment of the disclosure in conjunction with the following drawings, the present invention more better understood when
Features described above and advantage.
Fig. 1 is the process signal of the releasing parking control method for the embodiment being painted according to an aspect of the present invention
Figure；
Fig. 2 is the process signal of the releasing parking control method for another embodiment being painted according to an aspect of the present invention
Figure；
Fig. 3 is the process signal of the releasing parking control method for the another embodiment being painted according to an aspect of the present invention
Figure；
Fig. 4 is the schematic block diagram of the electronic parking system for the embodiment being painted according to another aspect of the present invention.
Specific embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.Note that below in conjunction with attached drawing and specifically real
The aspects for applying example description is merely exemplary, and is understood not to carry out any restrictions to protection scope of the present invention.
To prevent the case where electronic parking system can not be properly received brake pedal signal, one according to the present invention
Aspect provides a kind of releasing parking control method.
In one embodiment, as shown in Figure 1, releasing parking control method 100 includes:
S110: the brake pedal signal that at least two control modules detect is obtained.
It is appreciated that in the prior art, due to releasing in parking control process, only receiving be detected from ESC
Brake pedal signal, thus when obtain brake pedal signal it is unique by way of break down when, release parking control process then without
Method normal operation is gone down, therefore by setting two different acquisition brake pedal signals by way of can avoid an only way
The problem of being unable to operate normally when through breaking down.
It is appreciated that this at least two can be two or more.
Control module does not refer to the module for needing to generate control instruction or control action narrowly, and can be understood as any
It can detecte out the module of brake pedal signal.
Brake pedal signal refers to the signal that may be used to indicate brake pedal status.Corresponding, control module can be use
In the module of signal detection, at least it is used to detect the signal for being operated degree that can indicate brake pedal, for example brake pedal exists
It is the size of the signal, strong and weak different when the states such as unclamping, step on or do not step on completely, by by the signal with it is pre-set
Signal standards relatively can determine whether out the degree that brake pedal is operated, to judge the current work feelings of vehicle brake executing agency
Condition.
S120: the brake pedal signal detected in response to any control module meets the parking condition that releases, identification parking
Whether switch is closed.
Generally, it releases parking condition and needs to guarantee that safety problem, such as car slipping, cunning is not present in vehicle after releasing parking
Slope etc..Therefore the brake pedal of vehicle is needed to be operated to provide the frictional force that vehicle overcomes sliding force.Therefore, when this at least
The brake pedal signal instruction brake pedal that any one control module in two control modules detects is operated, then can be sentenced
The vehicle break to meet and release parking condition, parking can be released.At this point, it is effective for closing parking switch.Thus, full
After foot releases parking condition, the state of parking switch is identified.
In existing mechanical parking method, due to achieving the purpose that parking using mechanical parking brake and releasing parking,
Therefore the pull-up of the state of brake pedal and mechanical parking brake and putting down can not be directly associated, driver can only be passed through
Working specification guarantee the safety of vehicle.Accordingly, electronic parking system releases parking condition by setting and steps on braking
Board status and parking control combine, so that vehicle can not release parking when brake pedal is not stepped on, it is further real
Show and has not only ensured that vehicle and the safety of occupant by the working specification of driver.
S130: being closed in response to parking switch, generates and releases parking order；
Parking switch, which is closed, to be referred to releasing parking by some movements, and " closing " does not limit the specific of the movement
Meaning.In some embodiments, parking switch can be physical button, for example when opening parking, which is pulled up, and is being closed
When closing parking, which is pressed.In some embodiments, parking switch can be the virtual key on the interface UI, press
The virtual key then changes current parking switch state, and even vehicle is in releasing parked state and is then changed to parked state, if
Vehicle is in parked state and is then changed to release parked state.
After vehicle, which meets, releases parking condition, if identifying, parking switch is pressed, and generates and releases parking order.
S140: the releasing parking order is executed to release parking.
Further, it releases parking control method and is suitable for the vehicle in parked state, therefore in above-mentioned steps
Before S110~S140 is executed, it is necessary first to judge whether vehicle is in parked state.
Generally, when vehicle is in parked state, caliper should be at clamped condition, for electronic parking system,
Parking switch is in the open state, therefore can judge vehicle by obtaining caliper status signal and parking switch status signal
Whether be in parked state.
Release parking control method 100 further include: obtain caliper status signal and parking switch status signal；Response
In caliper, in clamped condition and parking switch is in the open state, judges that vehicle is in parked state.
Further, parking control method 100 is released further include: receive vehicle when being in parked state in response to vehicle
Ignition signal, that is, vehicle is activated, and executes step S110~S140.
In another embodiment, as shown in Fig. 2, releasing parking control method 200 includes:
S210: electronic stability control module ESC and car body control module (Body Control Module, BCM) are obtained
The brake pedal signal detected.
Specifically, brake pedal can be coupled with a switching device, the both ends of switching device and the standing power module of vehicle
Coupling, brake pedal tip into or out being opened or closed for controllable switch device.
Electronic stability control module and car body control module can detect this by respective voltage detection unit respectively
The voltage value at the switching device both ends of brake pedal control is for judging the state of brake pedal.It is appreciated that brake pedal
To step on degree related with the closure degree of the switching device, therefore electronic stability control module and car body control module detection
What voltage value out may be used to indicate brake pedal steps on degree.
Settable identical or different voltage threshold is as judgement vehicle brake pedal for different control modules
The preset threshold being operated.For example the electronic stability control module in the present embodiment can set 8V for voltage threshold, work as electronics
The voltage value at the both ends of the switching device for the brake pedal control that stability contorting module detects is greater than the preset threshold of its setting
The exportable result for determining brake pedal and being operated when 8V.For example the car body control module in the present embodiment can set voltage threshold
It is set to 7V, when the voltage value at the both ends of the switching device for the brake pedal control that car body control module detects is greater than its setting
The exportable result for determining brake pedal and being operated when preset threshold 7V.
It is appreciated that comparator can be respectively adopted to realize detection electricity in electronic stability control module and car body control module
Pressure value compared with preset threshold, thus based on be greater than preset threshold and no more than preset threshold export different comparison results with
As brake pedal signal.For example comparator exports 1 for indicating brake pedal when detecting voltage value and being greater than preset threshold
It is operated, when detecting voltage value and being not more than preset threshold, comparator output 0 is for indicating that brake pedal is in releasing orientation
Or it is not operated to a certain degree.
S220: the brake pedal signal detected in response to electronic stability control module or car body control module meets releasing
Whether parking condition, identification parking switch are closed.
It is appreciated that accordingly, the electronic stability control module and car body control module can be based on by releasing parking condition
The type come of output data be arranged.For example, releasing the brake pedal signal that parking condition is acquisition is 1, then when electronics is steady
When the comparison result for determining the output of control module or car body control module is 1, it is judged to meeting releasing parking condition；And work as electronics
When the comparison result of the output of stability contorting module or car body control module is 0, it is judged to being unsatisfactory for releasing parking condition.
S230: being closed in response to parking switch, generates and releases parking order；
S240: the releasing parking order is executed to release parking.
Further, it releases parking control method and is suitable for the vehicle in parked state, therefore in above-mentioned steps
Before S210~S240 is executed, it is necessary first to judge whether vehicle is in parked state.
Generally, when vehicle is in parked state, caliper should be at clamped condition, for electronic parking system,
Parking switch is in the open state, therefore can judge vehicle by obtaining caliper status signal and parking switch status signal
Whether be in parked state.
Release parking control method 200 further include: obtain caliper status signal and parking switch status signal；Response
In caliper, in clamped condition and parking switch is in the open state, judges that vehicle is in parked state.
Further, parking control method 200 is released further include: receive vehicle when being in parked state in response to vehicle
Ignition signal, that is, vehicle is activated, and executes step S210~S240.
In another embodiment, as shown in figure 3, releasing parking control method 300 includes:
S310: obtain what electronic stability control module ESC, car body control module BCM and pressure detecting module detected
Brake pedal signal.
It is appreciated that the detection method and brake pedal signal of electronic stability control module ESC and car body control module BCM
Determination method release parking control method 200 in be elaborated, details are not described herein.
In existing vehicle, brake pedal controls multiple brakes simultaneously, such as left front brake for controlling the near front wheel,
Behind right front brake, the left back brake for controlling left rear wheel and the right side for controlling off hind wheel for controlling off-front wheel
Brake.Brake fluid in master cylinder master cylinder is passed through brake pipe by the operation when brake pedal is operated of master cylinder master cylinder
Road is squeezed to each wheel cylinder wheel cylinder, to drive each brake operation.It, can be to master cylinder after thus brake pedal is operated
Brake fluid in master cylinder, wheel cylinder wheel cylinder and all brake pipings, which is formed, to be squeezed, therefore the detectable braking master of pressure detecting module
Pressure value in cylinder master cylinder, in wheel cylinder wheel cylinder or in brake piping in the brake fluid of any position is to be used to indicate brake pedal
State.
Pressure and brake pedal based on brake fluid step on the relationship setting pressure threshold of degree, pressure detecting module inspection
It measures when the pressure value in brake fluid is greater than the pressure threshold and determines that the brake pedal is operated.
Further, using the comparison result of the pressure value and the pressure threshold as brake pedal signal.Such as by the inspection
The pressure value and pressure threshold measured are as the input of a comparator to obtain an output.It is somebody's turn to do when the pressure value detected is greater than
When pressure threshold, comparator output 1；When the pressure value detected is not more than the pressure threshold, comparator output 0.This ratio
Result compared with device output can be used as brake pedal signal.
Although being appreciated that in above-mentioned releasing parking control method 200 and the present embodiment, by the output knot of comparator
Fruit can also actually examine electronic stability control module, car body control module or pressure detecting module as brake pedal signal
For the data measured as brake pedal signal, then the brake pedal signal detected for different control modules uses different solutions
Determine except parking condition, repeats no more.
S320: the braking detected in response to electronic stability control module, car body control module or pressure detecting module is stepped on
Partitioned signal meets the parking condition that releases, and whether identification parking switch is closed.
It is appreciated that accordingly, release parking condition can based on the electronic stability control module, car body control module and
Type that the output data of pressure detecting module is come is arranged.For example, releasing parking condition is that the brake pedal signal obtained is
1, then when the comparison result of the output of electronic stability control module, car body control module or pressure detecting module is 1, it is determined as
Meet and releases parking condition；And the comparison of the output when electronic stability control module, car body control module or pressure detecting module
When being as a result 0, it is judged to being unsatisfactory for releasing parking condition.
S330: being closed in response to parking switch, generates and releases parking order；
S340: the releasing parking order is executed to release parking.
Further, it releases parking control method and is suitable for the vehicle in parked state, therefore in above-mentioned steps
Before S310~S340 is executed, it is necessary first to judge whether vehicle is in parked state.
Generally, when vehicle is in parked state, caliper should be at clamped condition, for electronic parking system,
Parking switch is in the open state, therefore can judge vehicle by obtaining caliper status signal and parking switch status signal
Whether be in parked state.
Release parking control method 300 further include: obtain caliper status signal and parking switch status signal；Response
In caliper, in clamped condition and parking switch is in the open state, judges that vehicle is in parked state.
Further, parking control method 300 is released further include: receive vehicle when being in parked state in response to vehicle
Ignition signal, that is, vehicle is activated, and executes step S310~S340.
Although for simplify explain the above method is illustrated to and is described as a series of actions, it should be understood that and understand,
The order that these methods are not acted is limited, because according to one or more embodiments, some movements can occur in different order
And/or with from it is depicted and described herein or herein it is not shown and describe but it will be appreciated by those skilled in the art that other
Movement concomitantly occurs.
According to another aspect of the present invention, a kind of electronic parking system, in one embodiment, electronic parking system are provided
400 include controller 410 and executing agency 420.
Controller 410 and at least two for detect brake pedal signal control module couple with obtain this at least two
The brake pedal signal that control module detects, the brake pedal signal that controller 410 is detected in response to any control module
Meet the parking condition that releases, whether identification parking switch is closed, and is closed in response to the parking switch, generates to release and stay
Vehicle order.
Executing agency 420 couples with controller 410, receives and executes releasing parking order to release parking.
It is appreciated that in the prior art, due to releasing in parking control process, only receiving be detected from ESC
Brake pedal signal, thus when obtain brake pedal signal it is unique by way of break down when, release parking control process then without
Method normal operation is gone down, therefore by setting two different acquisition brake pedal signals by way of can avoid an only way
The problem of being unable to operate normally when through breaking down.
It is appreciated that this at least two can be two or more.
Control module does not refer to the module for needing to generate control instruction or control action narrowly, and can be understood as any
It can detecte out the module of brake pedal signal.
Brake pedal signal refers to the signal that may be used to indicate brake pedal status.Corresponding, control module can be use
In the module of signal detection, at least it is used to detect the signal for being operated degree that can indicate brake pedal, for example brake pedal exists
It is the size of the signal, strong and weak different when the states such as unclamping, step on or do not step on completely, by by the signal with it is pre-set
Signal standards relatively can determine whether out the degree that brake pedal is operated, to judge the current work feelings of vehicle brake executing agency
Condition.
For example, when at least two control module is electronic stability control module ESC and car body control module, electronics
Stability contorting module ESC and car body control module can detect the voltage value at the both ends of the associated switching device of brake pedal respectively
To judge the state of brake pedal.The switching device is opened or closed with tipping into or out for brake pedal, therefore switchs
The voltage at device both ends may be used to indicate the state of brake pedal.
Generally, it releases parking condition and needs to guarantee that safety problem, such as car slipping, cunning is not present in vehicle after releasing parking
Slope etc..Therefore the brake pedal of vehicle is needed to be operated to provide the frictional force that vehicle overcomes sliding force.Therefore, when this at least
The brake pedal signal instruction brake pedal that any one control module in two control modules detects is operated, then can be sentenced
The vehicle break to meet and release parking condition, parking can be released.At this point, it is effective for closing parking switch.Thus, full
After foot releases parking condition, the state of parking switch is identified.
In existing mechanical parking method, due to achieving the purpose that parking using mechanical parking brake and releasing parking,
Therefore the pull-up of the state of brake pedal and mechanical parking brake and putting down can not be directly associated, driver can only be passed through
Working specification guarantee the safety of vehicle.Accordingly, electronic parking system 400 releases parking condition by setting and will brake
Pedal state and parking control combine, so that vehicle can not release parking when brake pedal is not stepped on, further
It realizes and not only ensures that vehicle and the safety of occupant by the working specification of driver.
Further, settable identical or different voltage threshold is used as judgement vehicle for different control modules
The preset threshold that brake pedal is operated.For example electronic stability control module can set 8V for voltage threshold, work as electronic stability
When the voltage value at the both ends of the switching device for the brake pedal control that control module detects is greater than the preset threshold 8V of its setting
The exportable result for determining brake pedal and being operated.Car body control module can set 7V for voltage threshold, when Body Control mould
The voltage value at the both ends of the switching device for the brake pedal control that block detects is greater than exportable when the preset threshold 7V of its setting
Determine the result that brake pedal is operated.
It is appreciated that comparator can be respectively adopted to realize detection electricity in electronic stability control module and car body control module
Pressure value compared with preset threshold, thus based on be greater than preset threshold and no more than preset threshold export different comparison results with
As brake pedal signal.For example comparator exports 1 for indicating brake pedal when detecting voltage value and being greater than preset threshold
It is operated, when detecting voltage value and being not more than preset threshold, comparator output 0 is for indicating that brake pedal is in releasing orientation
Or it is not operated to a certain degree.
Accordingly, releasing parking condition can the output data based on the electronic stability control module and car body control module
The type come is arranged.For example, releasing the brake pedal signal that parking condition is acquisition is 1, then when electronic stability control module
Or the comparison result of the output of car body control module be 1 when, be judged to meeting release parking condition；And when electronic stability controls mould
When the comparison result of the output of block or car body control module is 0, it is judged to being unsatisfactory for releasing parking condition.
Alternatively, controller can also be coupled with three control modules for detecting brake pedal signal, for example be controlled
Device 410 processed is respectively with electronic stability control module ESC, car body control module BCM and pressure detecting module couples to obtain electricity
The brake pedal signal that sub- stability contorting module ESC, car body control module BCM and pressure detecting module detect.It is wherein electric
The detection method of sub- stability contorting module ESC and car body control module BCM and the determination method of brake pedal are in detail above
It illustrates, repeats no more.
Pressure detecting module include be set to master cylinder master cylinder to any position between wheel cylinder wheel cylinder at least one
Pressure sensor, at least one pressure sensor detect the pressure value of master cylinder to any position between wheel cylinder wheel cylinder,
Any position includes master cylinder master cylinder, wheel cylinder air pump and master cylinder master cylinder to the brake piping between wheel cylinder air pump
It is interior.In existing vehicle, brake pedal controls multiple brakes simultaneously, for example is used to control the left front brake of the near front wheel, is used for
It is braked after controlling right front brake, the left back brake for controlling left rear wheel and the right side for controlling off hind wheel of off-front wheel
Device.The operation when brake pedal is operated of master cylinder master cylinder, the brake fluid in master cylinder master cylinder is squeezed by brake piping
It is depressed into each wheel cylinder wheel cylinder, to drive each brake operation.It, can be total to master cylinder after thus brake pedal is operated
Brake fluid in pump, wheel cylinder wheel cylinder and all brake pipings, which is formed, to be squeezed, therefore pressure detecting module can detect master cylinder
Pressure value in master cylinder, in wheel cylinder wheel cylinder or in brake piping in the brake fluid of any position is to be used to indicate brake pedal
State.
Pressure and brake pedal based on brake fluid step on the relationship setting pressure threshold of degree, pressure detecting module inspection
It measures when the pressure value in brake fluid is greater than the pressure threshold and determines that the brake pedal is operated.
Further, using the comparison result of the pressure value and the pressure threshold as brake pedal signal.Such as by the inspection
The pressure value and pressure threshold measured are as the input of a comparator to obtain an output.It is somebody's turn to do when the pressure value detected is greater than
When pressure threshold, comparator output 1；When the pressure value detected is not more than the pressure threshold, comparator output 0.This ratio
Result compared with device output can be used as brake pedal signal.
Although being appreciated that in above-mentioned elaboration using the output result of comparator as brake pedal signal, actually
The data that electronic stability control module, car body control module or pressure detecting module can be detected as brake pedal signal,
The brake pedal signal then detected for different control modules is determined using different releasing parking conditions, is no longer opened up
It opens.
It is appreciated that controller 410 constantly obtains the brake pedal signal that at least two control module detects, as long as
Any one brake pedal signal obtained allows to release parking after meeting releasing parking condition.It avoids due to by single
The brake pedal signal that a control module detects determine whether to meet release parking condition and caused by unreliability.
Further, controller 410 further includes the parking course of work, by wheel speed signal know vehicle be in it is static or
When close to stationary state, parking switch is opened, controller 410 receives after parking switch is turned on signal, sends out to executing agency 420
It send parking order and exports corresponding operating current, executing agency executes the parking order.
It is needed under the premise of vehicle is in parked state it is appreciated that releasing the parking course of work.Generally, at vehicle
When parked state, caliper should be at clamped condition, and for electronic parking system 400, parking switch is in opening state
State, therefore controller 410 can judge whether vehicle is located by obtaining caliper status signal and parking switch status signal
In parked state.Controller 410 is in clamped condition in response to caliper and parking switch is in the open state, judges at vehicle
In parked state, and while being in parked state in response to vehicle, receives vehicle ignition signal i.e. vehicle and is activated, controller 410
Start to obtain brake pedal signal.
It will be understood by those skilled in the art that appointing in various different technologies and skill can be used in information, signal and data
What technology and skill indicate.For example, above description quote from the whole text data, instruction, order, information, signal, position (bit),
Symbol and chip can by voltage, electric current, electromagnetic wave, magnetic field or magnetic particle, light field or optical particle, or any combination thereof come table
Show.
Those skilled in the art will further appreciate that, the various illustratives described in conjunction with the embodiments described herein
Logic plate, module, circuit and algorithm steps can be realized as electronic hardware, computer software or combination of the two.It is clear
Explain to Chu this interchangeability of hardware and software, various illustrative components, frame, module, circuit and step be above with
Its functional form makees generalization description.Such functionality be implemented as hardware or software depend on concrete application and
It is applied to the design constraint of total system.Technical staff can realize every kind of specific application described with different modes
Functionality, but such realization decision should not be interpreted to cause departing from the scope of the present invention.
In conjunction with presently disclosed embodiment describe various illustrative logic modules and circuit can with general processor,
Digital signal processor (DSP), specific integrated circuit (ASIC), field programmable gate array (FPGA) or other programmable logic
Device, discrete door or transistor logic, discrete hardware component or its be designed to carry out any group of function described herein
It closes to realize or execute.General processor can be microprocessor, but in alternative, which can be any routine
Processor, controller, microcontroller or state machine.Processor is also implemented as calculating the combination of equipment, such as DSP
With the combination of microprocessor, multi-microprocessor, one or more microprocessors to cooperate with DSP core or any other this
Class configuration.
The step of method or algorithm for describing in conjunction with embodiment disclosed herein, can be embodied directly in hardware, in by processor
It is embodied in the software module of execution or in combination of the two.Software module can reside in RAM memory, flash memory, ROM and deposit
Reservoir, eprom memory, eeprom memory, register, hard disk, removable disk, CD-ROM or known in the art appoint
In the storage medium of what other forms.Exemplary storage medium is coupled to processor so that the processor can be from/to the storage
Medium reads and writees information.In alternative, storage medium can be integrated into processor.Pocessor and storage media can
It resides in ASIC.ASIC can reside in user terminal.In alternative, pocessor and storage media can be used as discrete sets
Part is resident in the user terminal.
In one or more exemplary embodiments, described function can be in hardware, software, firmware, or any combination thereof
Middle realization.If being embodied as computer program product in software, each function can be used as one or more item instructions or generation
Code may be stored on the computer-readable medium or be transmitted by it.Computer-readable medium includes computer storage medium and communication
Both media comprising any medium for facilitating computer program to shift from one place to another.Storage medium can be can quilt
Any usable medium of computer access.It is non-limiting as example, such computer-readable medium may include RAM, ROM,
EEPROM, CD-ROM or other optical disc storages, disk storage or other magnetic storage apparatus can be used to carrying or store instruction
Or data structure form desirable program code and any other medium that can be accessed by a computer.Any connection is also by by rights
Referred to as computer-readable medium.For example, if software is using coaxial cable, fiber optic cables, twisted pair, digital subscriber line
(DSL) or the wireless technology of such as infrared, radio and microwave etc is passed from web site, server or other remote sources
It send, then the coaxial cable, fiber optic cables, twisted pair, DSL or such as infrared, radio and microwave etc is wireless
Technology is just included among the definition of medium.Disk (disk) and dish (disc) as used herein include compression dish
(CD), laser disc, optical disc, digital versatile disc (DVD), floppy disk and blu-ray disc, which disk (disk) are often reproduced in a manner of magnetic
Data, and dish (disc) with laser reproduce data optically.Combinations of the above should also be included in computer-readable medium
In the range of.
Description before offer be can practice to make any technical staff in this field it is described herein
Various aspects.However, it should be understood that protection scope of the present invention should be subject to the appended claims, and should not be limited to
The specific structure and component of above the explained embodiment.Those skilled in the art within the spirit and scope of the present invention, can be right
Each embodiment carries out various changes and modifications, these are changed and modification is also fallen within the scope and spirit of the invention.
Claims (14)
1. a kind of releasing parking control method, comprising:
Obtain the brake pedal signal that at least two control modules detect；
The brake pedal signal detected in response to any control module meets the parking condition that releases, identification parking switch whether by
It closes；
It is closed in response to the parking switch, generates and release parking order；And
The releasing parking order is executed to release parking.
2. releasing parking control method as described in claim 1, which is characterized in that at least two control module includes electricity
Sub- stability contorting module and car body control module.
3. releasing parking control method as claimed in claim 2, which is characterized in that at least two control module detects
Brake pedal signal further include pressure signal in brake fluid that pressure detecting module detects.
4. releasing parking control method as claimed in claim 3, which is characterized in that the brake fluid includes being in master cylinder
Master cylinder, wheel cylinder wheel cylinder are interior or are set to the brake piping of any position between the master cylinder master cylinder and the wheel cylinder wheel cylinder
Interior brake fluid.
5. releasing parking control method as described in claim 1, which is characterized in that further include:
The brake pedal signal instruction brake pedal detected in response to any control module is operated, and judges the brake pedal
Signal, which meets, releases parking condition.
6. releasing parking control method as described in claim 1, which is characterized in that further include:
Vehicle is activated when being in parked state in response to vehicle, is received the braking that at least two control module detects and is stepped on
Partitioned signal.
7. releasing parking control method as claimed in claim 6, which is characterized in that further include:
In response to caliper, in clamped condition and parking switch is in the open state, judges that the vehicle is in parked state.
8. a kind of electronic parking system, comprising:
Controller, the controller, which is formulated into, obtains the brake pedal signal that at least two control modules detect, in response to
The brake pedal signal that any control module detects meets the parking condition that releases, and whether identification parking switch is closed, and rings
Parking switch described in Ying Yu is closed, and is generated and is released parking order；And
Executing agency couples with the controller, receives and execute the releasing parking order to release parking.
9. electronic parking system as claimed in claim 8, which is characterized in that at least two control module includes at least electricity
Sub- stability contorting module and car body control module.
10. electronic parking system as claimed in claim 9, which is characterized in that at least two control module further includes pressure
Power detection module, the pressure detecting module are used to detect the pressure signal in brake fluid.
11. electronic parking system as claimed in claim 10, which is characterized in that the pressure detecting module includes at least one
Pressure sensor, the pressure sensor is set in master cylinder master cylinder, in wheel cylinder wheel cylinder or the master cylinder master cylinder extremely
The pressure signal of the brake fluid at its present position is obtained between the wheel cylinder wheel cylinder in the brake piping of any position.
12. electronic parking system as claimed in claim 8, which is characterized in that the controller is also made into:
The brake pedal signal instruction brake pedal detected in response to any control module is operated, and judges the brake pedal
Signal, which meets, releases parking condition.
13. electronic parking system as claimed in claim 8, which is characterized in that the controller is also made into:
Vehicle is activated when being in parked state in response to vehicle, is received the braking that at least two control module detects and is stepped on
Partitioned signal.
14. electronic parking system as claimed in claim 13, which is characterized in that the controller is also made into:
In response to caliper, in clamped condition and parking switch is turned on, and judges that the vehicle is in parked state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201910171744.2A CN109866749A (en) | 2019-03-07 | 2019-03-07 | A kind of electronic parking system and its release parking control method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910171744.2A CN109866749A (en) | 2019-03-07 | 2019-03-07 | A kind of electronic parking system and its release parking control method |
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| CN109866749A true CN109866749A (en) | 2019-06-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910171744.2A Pending CN109866749A (en) | 2019-03-07 | 2019-03-07 | A kind of electronic parking system and its release parking control method |
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