CN114620020A - Fixed clamp parking method and system for vehicle and vehicle - Google Patents
Fixed clamp parking method and system for vehicle and vehicle Download PDFInfo
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- CN114620020A CN114620020A CN202210193580.5A CN202210193580A CN114620020A CN 114620020 A CN114620020 A CN 114620020A CN 202210193580 A CN202210193580 A CN 202210193580A CN 114620020 A CN114620020 A CN 114620020A
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- 238000000034 method Methods 0.000 title claims abstract description 45
- 230000009471 action Effects 0.000 claims abstract description 21
- 238000004590 computer program Methods 0.000 claims 1
- 238000005516 engineering process Methods 0.000 abstract description 7
- 238000010586 diagram Methods 0.000 description 8
- 238000006073 displacement reaction Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000000740 bleeding effect Effects 0.000 description 1
- 230000009191 jumping Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
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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
- B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
- B60T13/74—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with electrical assistance or drive
- B60T13/741—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with electrical assistance or drive acting on an ultimate actuator
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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
- B60T2220/00—Monitoring, detecting driver behaviour; Signalling thereof; Counteracting thereof
- B60T2220/04—Pedal travel sensor, stroke sensor; Sensing brake request
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- Regulating Braking Force (AREA)
- Braking Arrangements (AREA)
Abstract
The application relates to the technical field of vehicles, in particular to a fixed clamp parking method and system for a vehicle and the vehicle, wherein the method comprises the following steps: receiving a parking clamping signal of a vehicle; detecting an actual position of a parking piston of the stationary clamp based on the parking clamping signal; and when the actual position is detected to be the limit position, disconnecting the oil circuit of the fixed clamp from the oil circuit of the whole vehicle, driving the parking motor to output parking torque, and controlling one or more parking pistons to execute parking action. According to the fixed caliper parking method for the vehicle, the problems that a brake device is too thick and complex in structure and a brake problem is prone to occurring due to eccentric wear of a friction plate along the circumferential direction when a single cylinder participates in parking due to the fixed caliper parking method in the related technology are solved, the parking performance of the fixed caliper is greatly improved, and therefore driving and riding experience of a user is improved.
Description
Technical Field
The invention relates to the technical field of vehicles, in particular to a fixed clamp parking method and system for a vehicle and the vehicle.
Background
Currently, as the amount of vehicle inventory increases, fixed calipers are widely used for superior braking performance.
In the related art, the fixed caliper parking method mainly includes the following two methods: (1) an additional parking caliper is hung externally during parking; (2) one of the piston cylinders of the fixed clamp is used for parking, and the rest piston cylinders do not work during parking.
However, the two methods are easy to cause the brake device to be too bulky during parking, the structure is complex, and the friction plates are also eccentric along the circumferential direction due to the fact that the single cylinder participates in parking, so that various braking problems occur, the driving experience of users is greatly reduced, and a solution is needed urgently.
Disclosure of Invention
In view of the above, the invention aims to provide a method for parking a fixed caliper of a vehicle, which solves the problems that a braking device is easy to be overstaffed, the structure is complex, and friction plates are eccentric in the circumferential direction when the vehicle is parked, and parking devices such as a bistable electromagnetic valve and a piston position sensor can be arranged on the fixed caliper, so that the friction of the friction plates is avoided by pressure build of parking pistons and linkage parking of a plurality of pistons, and clamping and releasing actions of parking are better realized.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
a fixed caliper parking method of a vehicle, comprising the steps of:
receiving a parking clamping signal of a vehicle;
detecting an actual position of a parking piston of the stationary clamp based on the parking clamping signal; and
and when the actual position is detected to be the limit position, disconnecting the oil circuit of the fixed clamp from the oil circuit of the whole vehicle, driving a parking motor to output parking torque, and controlling one or more parking pistons to execute parking action.
Further, the method for parking a fixed clamp of a vehicle further includes:
receiving a parking release signal of the vehicle;
and (4) conducting connection between the oil way of the fixed clamp and the oil way of the whole vehicle of the vehicle, driving the parking motor to stop outputting the parking torque, and finishing the parking action.
Further, before conducting the connection between the oil path of the fixed clamp and the oil path of the whole vehicle of the vehicle, the method further comprises the following steps:
identifying an actual state of the vehicle;
and after the actual state is the parking state, allowing the connection between the oil way of the fixed clamp and the oil way of the whole vehicle of the vehicle to be conducted.
Further, before the parking motor is driven to output the parking torque, the method further includes:
acquiring the actual opening degree of a brake pedal of the vehicle;
and matching the target parking torque of the parking motor according to the actual opening.
Compared with the prior art, the fixed clamp parking method for the vehicle has the following advantages:
according to the fixed clamp parking method of the vehicle, when a parking clamping signal of the vehicle is received, the actual position of the parking piston of the fixed clamp is detected, if the actual position reaches the limit position, the connection between the oil circuit of the fixed clamp and the oil circuit of the whole vehicle of the vehicle is disconnected, the parking motor is driven to output parking torque, and one or more parking pistons are controlled to execute parking action. Therefore, the problem that a braking device is too bulky and complex in structure when a fixed clamp parking method in the related technology is used for parking, and when a single cylinder participates in parking, friction plates are worn along the circumferential direction, so that the braking problem is easy to occur is solved, and the parking performance of the fixed clamp is greatly improved.
The invention also aims to provide a fixed clamp parking system for a vehicle, which solves the problems that a brake device is easy to be overstaffed, the structure is complex and friction plates are eccentric in the circumferential direction when the vehicle is parked, and parking devices such as bistable electromagnetic valves and piston position sensors can be arranged on the fixed clamp.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
a fixed-caliper parking system for a vehicle, comprising:
a piston position sensor for detecting an actual position of the parking piston;
the switch assembly is used for disconnecting or conducting the connection between the oil way of the fixed clamp and the oil way of the whole vehicle of the vehicle; and
the controller is used for receiving parking clamping signals of the vehicle and detecting when the actual position is the limit position, controlling the switch assembly to be disconnected, connecting the oil way of the fixed clamp with the oil way of the whole vehicle of the vehicle, driving the parking motor of the fixed clamp to output parking torque and controlling one or more parking pistons to execute parking actions.
Further, the controller is also used for receiving a parking release signal of the vehicle, controlling the switch assembly to be conducted, connecting the oil way of the fixed clamp with the oil way of the whole vehicle of the vehicle, driving the parking motor to stop outputting the parking torque, and finishing the parking action.
Further, the above-mentioned fixed caliper parking system of a vehicle further includes:
and the identifier is used for identifying the actual state of the vehicle before the oil way of the fixed clamp is communicated with the connection between the oil ways of the whole vehicle of the vehicle, and the oil way of the fixed clamp is allowed to be communicated with the connection between the oil ways of the whole vehicle of the vehicle after the actual state is in the parking state.
Further, the above-mentioned fixed caliper parking system of a vehicle further includes:
the collector is used for collecting the actual opening of a brake pedal of the vehicle before the parking motor is driven to output the parking torque, so that the controller matches the target parking torque of the parking motor according to the actual opening.
Further, the fixed caliper parking system of the vehicle further includes:
before the parking motor is driven to output the parking torque, the method further comprises the following steps:
acquiring the actual opening degree of a brake pedal of the vehicle;
and matching the target parking torque of the parking motor according to the actual opening.
Compared with the prior art, the fixed caliper parking system of the vehicle and the fixed caliper parking method of the vehicle have the same advantages, and are not described again.
The invention also aims to provide a vehicle, which solves the problems that a braking device is overstaffed and has a complex structure when a fixed caliper is parked by using a parking method in the related technology, and when a single cylinder participates in parking, a friction plate is eccentric and worn along the circumferential direction, so that the braking problem is easy to occur, and the parking performance of the fixed caliper is greatly improved.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
a vehicle provided with a fixed-caliper parking system of a vehicle as described in the above embodiments.
Compared with the prior art, the fixed caliper parking system of the vehicle has the same advantages as the fixed caliper parking system of the vehicle, and is not described again.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a flow chart of a fixed caliper parking method of a vehicle according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a system configuration according to an embodiment of the present invention;
FIG. 3 is a schematic structural view of a parking clamp according to an embodiment of the present invention;
FIG. 4 is a schematic view of the position sensor operating position of one embodiment of the present invention;
FIG. 5 is a logic diagram illustrating a park clamp function according to an embodiment of the present invention;
FIG. 6 is a logic diagram illustrating a park release function according to an embodiment of the present invention;
FIG. 7 is a logic diagram of a non-park brake function of an embodiment of the present invention;
fig. 8 is a block diagram illustrating a stationary clamp parking system of a vehicle according to an embodiment of the present invention.
Detailed Description
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
The method comprises the steps of detecting the actual position of a parking piston of a fixed clamp when a parking clamping signal of the vehicle is received, disconnecting the oil circuit of the fixed clamp and the oil circuit of the whole vehicle of the vehicle if the actual position reaches the limit position, driving a parking motor to output parking torque, and controlling one or more parking pistons to execute parking actions. According to the fixed caliper parking method for the vehicle, the problems that a brake device is too bulky and complex in structure when the fixed caliper parking method in the related technology is used for parking, and when a single cylinder participates in parking, friction plates are worn along the circumferential direction, so that the brake problem is easy to occur are solved, and the parking performance of the fixed caliper is greatly improved.
Fig. 1 is a flowchart of a fixed caliper parking method of a vehicle according to an embodiment of the present invention.
Before introducing the fixed clamp parking method of the vehicle according to the embodiment of the present application, the parking fixed clamp system and the structural components of the parking fixed clamp according to the embodiment of the present application are briefly introduced.
Specifically, as shown in fig. 2, the parking fixed clamp system of the embodiment of the present application includes: the parking brake system comprises a bistable electromagnetic valve, a brake pedal displacement sensor, an ECU (Electronic Control Unit), a parking motor and gear Unit, a piston position sensor and a parking switch button.
Further, as shown in fig. 3, the parking fixing clamp includes: the device comprises a bistable electromagnetic valve 1, a parking motor and gear unit 2, a piston position sensor 3, an air bleeding screw 4, an inner clamp body 5, a connecting bolt 6, an inner friction plate 7, a supporting pin 8, an outer clamp body 9 and an outer friction plate 10.
The bistable electromagnetic valve 1 can isolate an oil circuit in the caliper from an oil circuit of the whole vehicle; the piston position sensor 3 may identify the parking piston position; the parking motor is used for controlling the brake pads and the brake disc so as to prevent the vehicle from being reliably parked and avoiding sliding, and the gear unit can help the vehicle to realize actions of speed reduction, speed increase, direction change, reversing and the like; the brake pedal displacement sensor is used for decelerating or stopping the vehicle to ensure the driving safety; the parking switch button can help the vehicle to automatically park and avoid sliding; the ECU is a microcontroller special for the vehicle, namely a running computer, can automatically diagnose system faults when the vehicle runs, and has protection and self-adaption functions.
Specifically, as shown in fig. 1, a fixed caliper parking method of a vehicle according to an embodiment of the present invention includes the steps of:
and step S101, receiving a parking clamping signal of the vehicle.
Specifically, when the vehicle runs in a red light or an uphill road section and needs to be decelerated and stopped, the vehicle needs a certain braking force to be reliably stopped. When the intention of parking of the vehicle is recognized, the ECU receives a parking clamping signal of the vehicle and carries out related instructions to help the vehicle enter a parking state.
Step S102, detecting the actual position of the parking piston of the fixed clamp based on the parking clamping signal.
Specifically, after the ECU receives a parking clamping signal of the vehicle, the embodiment of the present application may read the state of the parking piston of the fixed caliper through the piston position sensor and detect the actual position of the parking piston.
It should be noted that there are many ways to detect the actual position of the parking piston of the fixed caliper, for example, the position of the parking piston may be detected by arranging a sensor at the position of the cylinder hole in the embodiment of the present application, and may also be detected in other ways, and details are not described here to avoid redundancy.
And step S103, when the actual position is detected to be the limit position, disconnecting the oil passage of the fixed clamp and the oil passage of the whole vehicle, driving the parking motor to output parking torque, and controlling one or more parking pistons to execute parking action.
The limit positions can be upper and lower supporting points of the parking piston.
Specifically, the piston delivers the work done by the vehicle engine through four processes of exhaust, intake, compression and explosion. The piston moves downwards in the air inlet stroke, an air inlet valve is opened, and combustible mixed gas synthesized by gasoline and air is sucked into the cylinder; when the piston is in a compression stroke, the air inlet valve is closed, the piston moves upwards, and the combustible mixed gas is compressed; when the piston is in a working stroke (or called a power stroke and an explosion stroke), the piston is compressed to the top point, sparks are generated in the piston through high-voltage current, the piston is pushed to move downwards, and the crankshaft is rotated under the action of the connecting rod; the piston moves upwards during the exhaust stroke, the exhaust valve is opened, and the combusted waste gas is extruded by the piston and is exhausted by the exhaust valve.
Thus, as shown in fig. 4(a) and 4(b), the position of the piston when the sensor is deactivated and activated, respectively, is shown. In the parking process of the vehicle, the piston position sensor can detect the actual position of the piston, and if the piston position sensor triggers at the moment, the actual position of the piston reaches the limit position, and the mark of the piston position sensor is 0; if the piston position sensor is not activated, this means that the actual position of the piston has not reached the limit position, and the piston position sensor flag is 1. When the actual position of the piston reaches the limit position, the ECU controller controls the valve core of the bistable electromagnetic valve to be electrified in the forward direction and pushed out, and the valve core is kept at the push-out position after power failure, so that the connection between the oil circuit of the fixed clamp and the oil circuit of the whole vehicle of the vehicle is disconnected, the parking motor is driven to output parking torque, an actuating mechanism (such as a motor) pushes the parking piston to establish hydraulic pressure in the brake clamp to realize parking clamping action, and one or more parking pistons are controlled to execute parking action, so that the set parking force is reached. The bistable electromagnetic valve is installed on the clamp body through a bolt, the body is located outside the clamp body, and the sealing valve core is located inside the clamp body. Therefore, friction of the friction plate can be avoided through the mode of linkage parking of a plurality of pistons, and the vehicle is more stable and reliable during parking.
To facilitate understanding of the parking clamping function by a person skilled in the art, the following detailed description is given with reference to specific embodiments.
As shown in fig. 5, fig. 5 is a logic flow diagram of the parking clamping function according to an embodiment of the present application, including the following steps:
and S501, transmitting a parking clamping signal to an ECU controller.
S502, reading the state of the position sensor, judging whether the piston position sensor mark is 1, if so, executing S504, otherwise, executing S503.
S503, when the sensor mark is 0, executing piston position initialization action, and jumping to execute the step S502 after initialization is completed;
and S504, the sensor is marked as 1, and the ECU controller controls the valve core of the bistable electromagnetic valve to be pushed out to isolate the oil circuit in the fixed clamp.
And S505, starting the parking motor, executing a clamping command, and stopping after the set parking force is reached.
And S506, ending the circulation.
Further, in some embodiments, before the connection between the oil passage of the fixed clamp and the oil passage of the entire vehicle is conducted, the method further includes: identifying an actual state of the vehicle; and after the actual state is the parking state, allowing the connection between the oil passage of the fixed clamp and the oil passage of the whole vehicle to be conducted.
Specifically, the actual state of the vehicle may be a state in which the vehicle is traveling or a state in which the vehicle is parked, and when the vehicle is in the parking state, the bistable electromagnetic valve is allowed to conductively connect an oil passage of the fixed clamp and an oil passage of the entire vehicle of the vehicle.
Further, in some embodiments, a fixed clamp parking method of a vehicle, further comprises: receiving a parking release signal of a vehicle; and (4) connecting the oil way of the fixed clamp with the oil way of the whole vehicle of the vehicle, driving the parking motor to stop outputting the parking torque, and finishing the parking action.
Specifically, when the vehicle finishes the parking state, the parking signal is released and transmitted to the ECU controller, the valve core of the bistable electromagnetic valve is controlled to be electrified with reverse current and retreated, the oil way of the fixed clamp is in conduction connection with the oil way of the whole vehicle, the parking motor stops outputting the parking torque, and the parking action is finished. The parking structure is combined with the oil circuit of the fixed clamp, when parking is conducted, parking clamping force is output by the pistons on two sides of the brake disc, and parking clamping force output mechanisms are arranged on two sides of the brake disc.
It should be noted that the bistable solenoid valve spool still needs to have the ability to remain in this position when pushed out or retracted to avoid the change in position of the spool due to impact while the vehicle is running.
To facilitate understanding of the park release function by those skilled in the art, detailed description is provided below in connection with specific embodiments.
As shown in fig. 6, fig. 6 is a logic flow diagram of a parking release function according to an embodiment of the present application, including the following steps:
and S601, transmitting a parking release signal to the ECU controller.
And S602, starting a parking motor, executing a release command, and stopping after the parking piston retracts for a set distance.
And S603, the controller controls the valve core of the bistable electromagnetic valve to retract, and the oil way inside the fixed clamp and the oil way of the whole vehicle are fixed.
S604, ending the loop.
Further, in some embodiments, before the driving of the parking motor to output the parking torque, the method further includes: acquiring the actual opening degree of a brake pedal of a vehicle; and matching the target parking torque of the parking motor according to the actual opening.
Specifically, when the vehicle enters a parking state, the actual opening degree of a brake pedal of the vehicle is acquired through a brake pedal displacement sensor, and the target parking torque of a parking motor is matched. As shown in fig. 7, fig. 7 is a logic flow diagram of a non-parking brake function according to an embodiment of the present application, including the following steps:
and S701, transmitting a brake pedal signal to the ECU controller.
And S702, reading the vehicle state, judging whether the vehicle state is in parking or not, if so, executing S703, and otherwise, executing S705.
And S703, starting the parking motor, executing a release command, and stopping after the parking piston retracts for a set distance.
And S704, the controller controls the valve core of the bistable electromagnetic valve to retract, and the oil circuit inside the fixing clamp and the oil circuit of the whole vehicle are fixed.
S705, the loop ends.
According to the fixed clamp parking method of the vehicle, the connection between the oil circuit of the fixed clamp and the oil circuit of the whole vehicle of the vehicle is disconnected when the fact that the actual position of the parking piston of the fixed clamp reaches the limit position is detected based on the parking clamping signal of the vehicle, the parking motor is driven to output parking torque, and one or more parking pistons are controlled to execute parking action. Therefore, the problem that a braking device is too bulky and complex in structure when a fixed clamp parking method in the related technology is used for parking, and when a single cylinder participates in parking, friction plates are worn along the circumferential direction, so that the braking problem is easy to occur is solved, and the parking performance of the fixed clamp is greatly improved.
Further, as shown in fig. 8, an embodiment of the present invention also discloses a fixed caliper parking system 1000 of a vehicle, which includes: a piston position sensor 100, a switch assembly 200, and a controller 300.
Specifically, the piston position sensor 100 is used to detect the actual position of the parking piston;
the switch assembly 200 is used for disconnecting or conducting connection between an oil way of the fixed clamp and an oil way of the whole vehicle;
the controller 300 is configured to, when receiving a parking clamping signal of the vehicle and detecting that the actual position is the limit position, control the switch assembly to disconnect the oil path of the fixed clamp from the oil path of the entire vehicle, drive the parking motor of the fixed clamp to output a parking torque, and control one or more parking pistons to perform a parking action.
Further, the controller 300 is further configured to receive a parking release signal of the vehicle, and control the switch assembly 200 to connect the oil path of the fixed clamp and the oil path of the entire vehicle, so as to drive the parking motor to stop outputting the parking torque, and end the parking operation.
Further, the fixed caliper parking system 1000 of the vehicle further includes:
and the identifier is used for identifying the actual state of the vehicle before the connection between the oil way of the fixed clamp and the oil way of the whole vehicle of the vehicle is conducted, and allowing the connection between the oil way of the fixed clamp and the oil way of the whole vehicle of the vehicle to be conducted after the actual state is the parking state.
Further, the fixed caliper parking system 1000 of the vehicle further includes:
the collector is used for collecting the actual opening of a brake pedal of the vehicle before the parking motor is driven to output the parking torque, so that the controller is matched with the target parking torque of the parking motor according to the actual opening.
Further, the fixed caliper parking system 1000 of the vehicle further includes:
before the parking motor is driven to output the parking torque, the method further comprises the following steps:
acquiring the actual opening degree of a brake pedal of a vehicle;
and matching the target parking torque of the parking motor according to the actual opening. It should be noted that, a specific implementation manner of the fixed caliper parking system of the vehicle according to the embodiment of the present invention is similar to a specific implementation manner of the fixed caliper parking method of the vehicle, and in order to reduce redundancy, details are not described here.
According to the fixed clamp parking system of the vehicle, when a parking clamping signal of the vehicle is received, the actual position of the parking piston of the fixed clamp is detected, if the actual position reaches the limit position, the connection between the oil circuit of the fixed clamp and the oil circuit of the whole vehicle of the vehicle is disconnected, the parking motor is driven to output parking torque, and one or more parking pistons are controlled to execute parking action. Therefore, the problem that a braking device is too bulky and complex in structure when a fixed clamp parking method in the related technology is used for parking, and when a single cylinder participates in parking, friction plates are worn along the circumferential direction, so that the braking problem is easy to occur is solved, and the parking performance of the fixed clamp is greatly improved.
Further, an embodiment of the invention discloses a vehicle provided with the fixed caliper parking system of the vehicle of the above embodiment. The vehicle is provided with the system, so that the problems that a braking device is too thick and complex in structure when a fixed clamp parking method in the related technology is used for parking, and when a single cylinder participates in parking, friction plates are worn along the circumferential direction, so that the braking problem is easy to occur are solved, and the parking performance of the fixed clamp is greatly improved.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions, improvements, etc. within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A fixed caliper parking method of a vehicle, characterized by comprising the steps of:
receiving a parking clamping signal of a vehicle;
detecting an actual position of a parking piston of the stationary clamp based on the parking clamping signal; and
and when the actual position is detected to be the limit position, disconnecting the oil circuit of the fixed clamp from the oil circuit of the whole vehicle, driving a parking motor to output parking torque, and controlling one or more parking pistons to execute parking action.
2. The method of claim 1, further comprising:
receiving a parking release signal of the vehicle;
and (4) conducting connection between the oil way of the fixed clamp and the oil way of the whole vehicle of the vehicle, driving the parking motor to stop outputting the parking torque, and finishing the parking action.
3. The method of claim 2, further comprising, prior to conducting a connection between an oil passage of the stationary jaw and a vehicle oil passage of the vehicle:
identifying an actual state of the vehicle;
and after the actual state is the parking state, allowing the connection between the oil way of the fixed clamp and the oil way of the whole vehicle of the vehicle to be conducted.
4. The method of claim 1, further comprising, before driving the parking motor to output parking torque:
acquiring the actual opening degree of a brake pedal of the vehicle;
and matching the target parking torque of the parking motor according to the actual opening.
5. A fixed-caliper parking system for a vehicle, comprising:
a piston position sensor for detecting an actual position of the parking piston;
the switch assembly is used for disconnecting or conducting the connection between the oil way of the fixed clamp and the oil way of the whole vehicle of the vehicle; and
the controller is used for receiving parking clamping signals of the vehicle and detecting when the actual position is the limit position, controlling the switch assembly to be disconnected, connecting the oil way of the fixed clamp with the oil way of the whole vehicle of the vehicle, driving the parking motor of the fixed clamp to output parking torque and controlling one or more parking pistons to execute parking actions.
6. The system of claim 5, wherein the controller is further configured to receive a parking release signal of the vehicle, control the switch assembly to connect the oil path of the fixed clamp and the oil path of the entire vehicle, and drive the parking motor to stop outputting the parking torque to end the parking operation.
7. The system of claim 6, further comprising:
and the identifier is used for identifying the actual state of the vehicle before the oil way of the fixed clamp is communicated with the connection between the oil ways of the whole vehicle of the vehicle, and the oil way of the fixed clamp is allowed to be communicated with the connection between the oil ways of the whole vehicle of the vehicle after the actual state is in the parking state.
8. The system of claim 5, further comprising:
the collector is used for collecting the actual opening degree of a brake pedal of the vehicle before the parking motor is driven to output the parking torque, so that the controller is matched with the target parking torque of the parking motor according to the actual opening degree.
9. The system of claim 5, further comprising:
before the parking motor is driven to output the parking torque, the method further comprises the following steps:
acquiring the actual opening degree of a brake pedal of the vehicle;
and matching the target parking torque of the parking motor according to the actual opening.
10. A vehicle, characterized by comprising: memory, a processor and a computer program stored on the memory and executable on the processor, the processor executing the program to implement a fixed-clamp parking method of a vehicle according to any of claims 1-4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210193580.5A CN114620020A (en) | 2022-03-01 | 2022-03-01 | Fixed clamp parking method and system for vehicle and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210193580.5A CN114620020A (en) | 2022-03-01 | 2022-03-01 | Fixed clamp parking method and system for vehicle and vehicle |
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| CN114620020A true CN114620020A (en) | 2022-06-14 |
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| CN202210193580.5A Pending CN114620020A (en) | 2022-03-01 | 2022-03-01 | Fixed clamp parking method and system for vehicle and vehicle |
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| CN204937125U (en) * | 2015-08-28 | 2016-01-06 | 芜湖伯特利汽车安全系统股份有限公司 | A kind of electronic brake system |
| CN108357481A (en) * | 2018-02-02 | 2018-08-03 | 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 |
| CN112550246A (en) * | 2019-09-25 | 2021-03-26 | 比亚迪股份有限公司 | Electronic parking system, brake device, electronic parking method and vehicle |
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2022
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| CN202703561U (en) * | 2012-05-29 | 2013-01-30 | 浙江吉利汽车研究院有限公司杭州分公司 | Hydraulic-pressure and machinery combination type parking device |
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| CN108357481A (en) * | 2018-02-02 | 2018-08-03 | 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 |
| CN112550246A (en) * | 2019-09-25 | 2021-03-26 | 比亚迪股份有限公司 | Electronic parking system, brake device, electronic parking method and vehicle |
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Application publication date: 20220614 |