CN217945163U - Electromechanical braking system and vehicle - Google Patents
Electromechanical braking system and vehicle Download PDFInfo
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- CN217945163U CN217945163U CN202222155488.8U CN202222155488U CN217945163U CN 217945163 U CN217945163 U CN 217945163U CN 202222155488 U CN202222155488 U CN 202222155488U CN 217945163 U CN217945163 U CN 217945163U
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Abstract
The utility model belongs to the technical field of vehicle engineering, and discloses an electromechanical braking system and a vehicle, wherein a braking signal sending device of the electromechanical braking system is used for sending a braking demand signal; the brakes are arranged in one-to-one correspondence with the wheels and can brake the wheels; the wheel side controllers are electrically connected with the brakes in a one-to-one correspondence manner, the wheel side controllers are electrically connected with the central controller, the central controller is electrically connected with the brake signal sending device, and the central controller can control the wheel side controllers to control the corresponding brakes to work according to the brake demand signals; the wheel side controllers are electrically connected with the braking signal sending device and can control the corresponding brakes to work according to braking demand signals. The electronic mechanical brake system can receive the brake demand signal and control the brake to act by the wheel side controller when the central controller fails to work, so as to brake the wheels and prevent the vehicle from being incapable of braking and causing danger when the central controller fails.
Description
Technical Field
The utility model relates to a vehicle engineering technical field especially relates to electronic machinery braking system and vehicle.
Background
An Electro-mechanical braking System (EMB) takes an electric driving element as a braking actuator to replace a traditional hydraulic or pneumatic braking actuator, is a brand new braking concept, and is a technology emerging in recent years. In the prior art, a central controller receives a braking demand signal and transmits a braking control signal to a wheel controller after calculation, and the wheel controller controls a brake to brake a wheel after receiving the braking control signal. However, when the central controller fails, the central controller cannot send out a brake control signal, so that the vehicle cannot brake, and a great potential safety hazard is caused.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an electronic machinery braking system and vehicle to solve prior art's electronic machinery braking system, when central controller became invalid, central controller could't send braking control signal, leaded to the unable braking of vehicle, had the problem of huge potential safety hazard.
To achieve the purpose, the utility model adopts the following technical proposal:
an electromechanical braking system comprising:
the braking signal sending device is used for sending a braking demand signal;
the brakes are arranged in one-to-one correspondence with the wheels and can brake the wheels;
the wheel side controllers are electrically connected with the brakes in a one-to-one correspondence mode, the wheel side controllers are electrically connected with the central controller, the central controller is electrically connected with the brake signal sending device, and the central controller can control the wheel side controllers to control the corresponding brakes to work according to the brake demand signals; the wheel side controllers are electrically connected with the braking signal sending device and can control the corresponding brakes to work according to the braking demand signals.
Preferably, the electronic mechanical brake system further comprises a plurality of wheel speed sensors, the plurality of wheel speed sensors are arranged in one-to-one correspondence with the plurality of wheels, the wheel speed sensors are used for detecting the rotating speed of the wheels, and the wheel side controller and/or the central controller are electrically connected with the wheel speed sensors.
Preferably, the electronic mechanical brake system further comprises a plurality of switches, the switches are arranged in one-to-one correspondence with the wheel speed sensors, the switches have a first state and a second state, and when the switches are in the first state, the wheel speed sensors are electrically connected with the central controller; when the switch is in the second state, the wheel speed sensor is electrically connected with the wheel side controller.
Preferably, the brake comprises a motor, a transmission structure and brake calipers, the motor is electrically connected with the wheel edge controller, the motor is in transmission connection with the brake calipers through the transmission structure, and the brake calipers can brake the wheels.
Preferably, the braking signal sending device comprises a parking switch electrically connected with both the central controller and the wheel controller, and the parking switch can send the braking demand signal.
Preferably, the braking signal sending device comprises a brake pedal simulator and a first stroke sensor electrically connected with both the central controller and the wheel side controller, and the first stroke sensor is used for detecting the movement stroke of the brake pedal simulator and forming the braking demand signal.
Preferably, the braking signal sending device further comprises a second stroke sensor, the central controller and the wheel side controller are both electrically connected with the second stroke sensor, and the second stroke sensor is used for detecting the movement stroke of the brake pedal simulator and forming the braking demand signal.
Preferably, the electromechanical braking system further comprises a first power source electrically connected to the central controller.
Preferably, the electromechanical brake system further includes a second power supply, and each of the plurality of wheel side controllers is electrically connected to the second power supply.
Vehicle, including above-mentioned electromechanical braking system.
The utility model has the advantages that:
the utility model provides an electromechanical braking system and vehicle, this electromechanical braking system, wheel limit controller both can get the control stopper to brake the wheel by central controller's control, and the braking demand signal that can also directly send according to the brake signal emitter goes the control stopper to brake the wheel. When the central controller fails, the wheel side controller receives the braking demand signal and controls the brake to act to brake the wheels, so that the vehicle is prevented from being braked to cause danger when the central controller fails. And when the central controller works normally, the wheel side controller and the central controller both receive the braking demand signal and perform braking related calculation, and at the moment, the calculation result of the central controller is taken as the main, and the calculation result of the wheel side controller is taken as verification to perform diagnosis and monitoring.
Drawings
Fig. 1 is a schematic structural diagram of an electromechanical braking system according to an embodiment of the present invention.
In the figure:
1. a central controller; 2. a wheel; 3. a brake; 4. a wheel-side controller; 5. a switch; 6. a wheel speed sensor; 7. a brake pedal simulator; 8. a first travel sensor; 9. a second stroke sensor.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures associated with the present invention are shown in the drawings, not all of them.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
In the description of the present embodiment, the terms "upper", "lower", "right", and the like are used in the orientation or positional relationship shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to be limiting.
The utility model provides an electromechanical braking system, as shown in figure 1, the electromechanical braking system comprises a braking signal sending device, a plurality of brakes 3, a plurality of wheel side controllers 4 and a central controller 1, wherein the braking signal sending device is used for sending a braking demand signal; the brakes 3 are arranged in one-to-one correspondence with the wheels 2, and the brakes 3 can brake the wheels 2; the wheel side controllers 4 are electrically connected with the brakes 3 in a one-to-one correspondence manner, the wheel side controllers 4 are electrically connected with the central controller 1, the central controller 1 is electrically connected with the brake signal sending device, and the central controller 1 can control the wheel side controllers 4 to control the corresponding brakes 3 to work according to brake demand signals; the wheel side controllers 4 are all electrically connected with the braking signal sending device, and the wheel side controllers 4 can control the corresponding brakes 3 to work according to braking demand signals. In the electromechanical braking system, the wheel controller 4 can be controlled by the central controller 1 to control the brake 3 to brake the wheel 2, and can also directly control the brake 3 to brake the wheel 2 according to a braking demand signal sent by the braking signal sending device. When the central controller 1 fails, the wheel controller 4 receives the braking demand signal and controls the brake 3 to operate to brake the wheel 2, thereby preventing the vehicle from being braked to cause danger when the central controller 1 fails. And when the central controller 1 works normally, the wheel side controllers 4 and the central controller 1 both receive the braking demand signal and perform braking related calculation, and at the moment, the calculation result of the central controller 1 is taken as the main, and the calculation result of the wheel side controllers 4 is taken as verification to perform diagnosis and monitoring.
Alternatively, the central controller 1 may be a central domain controller of the entire vehicle, or may be a separately provided controller.
Optionally, the electronic mechanical brake system further comprises a plurality of wheel speed sensors 6, the plurality of wheel speed sensors 6 are arranged in one-to-one correspondence with the plurality of wheels 2, the wheel speed sensors 6 are used for detecting the rotating speed of the wheels 2, and the wheel side controller 4 and/or the central controller 1 are electrically connected with the wheel speed sensors 6. When the wheel side controller 4 and the central controller 1 are electrically connected with the wheel speed sensor 6, the wheel side controller 4 and the central controller 1 can receive the wheel speed signals sent by the wheel speed sensor 6, perform all braking related control algorithms such as anti-lock and vehicle body stability related algorithms according to the wheel speed signals sent by all the wheel speed sensors, and form a vehicle speed signal. In this embodiment, the number of wheels is 4, and the number of wheel speed sensors is 4. When the central controller 1 works normally, the central controller 1 and the wheel side controllers 4 perform brake-related calculation according to wheel speed signals sent by 4 wheel speed sensors to obtain a vehicle speed, and finally, the calculation result of the central controller 1 is taken as a standard, the calculation result of the wheel side controllers 4 is used as a check, the central controller 1 sends vehicle speed signals to the wheel side controllers 4 corresponding to the wheels 2 after calculation, and the wheel side controllers 4 control the brakes 3 to act. When the central controller 1 fails to process the wheel speed signals, based on the calculation result of the wheel side controller 4, the wheel side controller 4 receives the wheel speed signals sent by the respective corresponding wheel speed sensors 6, and because the information of the remaining wheels 2 is lacking, the wheel side controller cannot calculate according to the wheel speed signals sent by all the wheel speed sensors, cannot calculate the vehicle speed, and cannot perform complete vehicle body stability control, but can perform braking related calculation according to the wheel speed signals sent by the wheel speed sensors corresponding to the wheel side controller, and each wheel 2 can control the wheel side controller not to be locked, so that a simplified anti-lock function is realized.
Optionally, the electromechanical braking system further comprises a plurality of switches 5, the plurality of switches 5 are disposed in one-to-one correspondence with the plurality of wheel speed sensors 6, the switches 5 have a first state and a second state, and when the switches 5 are in the first state, the wheel speed sensors 6 are electrically connected with the central controller 1; when the switch 5 is in the second state, the wheel speed sensor 6 is electrically connected to the wheel side controller 4. When the central controller 1 works normally, the switch 5 is in a first state, the central controller 1 receives a wheel speed signal sent by the wheel speed sensor 6, performs brake related calculation, then sends a vehicle speed signal to the wheel side controller 4, and the wheel side controller 4 controls the brake 3 to act. At this time, if the switch 5 corresponding to a certain wheel fails, the central controller 1 can still receive the wheel speed signals of the other wheels 2, calculate the vehicle speed to form a vehicle speed signal, and can still realize stability control by matching with an inertia measurement sensor and a steering function of the vehicle, so that the vehicle is ensured not to deviate and has enough deceleration, and the braking safety is realized. When the central controller 1 fails, the wheel side controller 4 receives the wheel speed signal sent by the wheel speed sensor 6 and performs calculation related to braking, so that each wheel 2 is controlled not to be locked, and a simplified anti-lock function is realized.
Optionally, the brake 3 includes a motor, a transmission structure and a brake caliper, the motor is electrically connected to the wheel controller 4, the motor is in transmission connection with the brake caliper through the transmission structure, and the brake caliper can brake the wheel 2. The wheel edge controller 4 controls the rotating speed and the rotating angle of the motor, and the motor drives the brake calipers to act through a transmission structure.
Optionally, the braking signal sending device comprises a parking switch 5 electrically connected with both the central controller 1 and the wheel controller 4, and the parking switch 5 can send a braking demand signal. After the parking switch 5 is manually or automatically controlled, the parking switch 5 sends a braking demand signal.
Optionally, the braking signal emitting device comprises a brake pedal simulator 7 and a first stroke sensor 8 electrically connected with both the central controller 1 and the wheel controller 4, and the first stroke sensor 8 is used for detecting the movement stroke of the brake pedal simulator 7 and forming a braking demand signal. The parking switch 5 and the brake pedal simulator 7 are operated separately. After the brake pedal simulator 7 is manually or automatically controlled, the movement stroke of the brake pedal simulator 7 is changed, and the first stroke sensor 8 detects the movement stroke of the brake pedal simulator 7 and forms a braking demand signal.
Optionally, the braking signal sending device further comprises a second stroke sensor 9, the central controller 1 and the wheel side controller 4 are both electrically connected with the second stroke sensor 9, and the second stroke sensor 9 is used for detecting the movement stroke of the brake pedal simulator 7 and forming a braking demand signal. The second travel sensor 9 is provided redundantly, and a braking demand signal can be generated by the second travel sensor 9 in the event of a failure of the first travel sensor 8.
Optionally, the electromechanical braking system further comprises a first power source electrically connected to the central controller 1. The first power supply is used to supply power to the central controller 1.
Optionally, the electromechanical braking system further comprises a second power source, to which the plurality of wheel-side controllers 4 are all electrically connected. The second power supply is used to supply power to the plurality of wheel controllers 4.
The utility model also provides a vehicle, this vehicle includes foretell electromechanical braking system.
It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Numerous obvious variations, rearrangements and substitutions will now occur to those skilled in the art without departing from the scope of the invention. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. An electromechanical braking system, comprising:
the braking signal sending device is used for sending a braking demand signal;
the brake device comprises a plurality of brakes (3), wherein the brakes (3) and a plurality of wheels (2) are arranged in a one-to-one correspondence mode, and the brakes (3) can brake the wheels (2);
the wheel side controllers (4) are electrically connected with the brakes (3) in a one-to-one correspondence mode, the wheel side controllers (4) are electrically connected with the central controller (1), the central controller (1) is electrically connected with the brake signal sending device, and the central controller (1) can control the wheel side controllers (4) to control the corresponding brakes (3) to work according to the brake demand signals; the wheel side controllers (4) are electrically connected with the braking signal sending device, and the wheel side controllers (4) can control the corresponding brakes (3) to work according to the braking demand signals.
2. The electromechanical brake system according to claim 1, further comprising a plurality of wheel speed sensors (6), wherein the plurality of wheel speed sensors (6) are provided in one-to-one correspondence with the plurality of wheels (2), the wheel speed sensors (6) are configured to detect a rotation speed of the wheels (2), and the wheel side controller (4) and/or the central controller (1) are electrically connected to the wheel speed sensors (6).
3. The electro-mechanical brake system according to claim 2, further comprising a plurality of switches (5), wherein the plurality of switches (5) are provided in one-to-one correspondence with the plurality of wheel speed sensors (6), the switches (5) having a first state and a second state, and when the switches (5) are in the first state, the wheel speed sensors (6) are electrically connected to the central controller (1); when the switch (5) is in the second state, the wheel speed sensor (6) is electrically connected with the wheel side controller (4).
4. Electromechanical brake system according to claim 1, characterized in that said brake (3) comprises an electric motor electrically connected to said wheel-side controller (4), a transmission structure by which said electric motor is drivingly connected to said brake caliper, and a brake caliper able to brake said wheel (2).
5. Electromechanical braking system according to claim 1, characterized in that said braking signal emitting means comprise a parking switch (5) electrically connected to both said central controller (1) and said wheel-side controller (4), said parking switch (5) being able to emit said braking demand signal.
6. Electromechanical brake system according to claim 1, characterized in that said braking signal emitting means comprise a brake pedal simulator (7) and a first travel sensor (8) electrically connected to both said central controller (1) and said wheel side controller (4), said first travel sensor (8) being adapted to detect the movement travel of said brake pedal simulator (7) and to form said braking demand signal.
7. Electromechanical brake system according to claim 6, characterized in that said brake signal issuing means further comprises a second stroke sensor (9), said central controller (1) and said wheel-side controller (4) being electrically connected to said second stroke sensor (9), said second stroke sensor (9) being adapted to detect a movement stroke of said brake pedal simulator (7) and to form said brake demand signal.
8. Electromechanical braking system according to claim 1, characterized in that it further comprises a first power source electrically connected to said central controller (1).
9. Electromechanical braking system according to claim 1, characterized in that it further comprises a second power source to which a plurality of said wheel-side controllers (4) are electrically connected.
10. Vehicle, characterized in that it comprises an electromechanical braking system according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222155488.8U CN217945163U (en) | 2022-08-16 | 2022-08-16 | Electromechanical braking system and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222155488.8U CN217945163U (en) | 2022-08-16 | 2022-08-16 | Electromechanical braking system and vehicle |
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| Publication Number | Publication Date |
|---|---|
| CN217945163U true CN217945163U (en) | 2022-12-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202222155488.8U Active CN217945163U (en) | 2022-08-16 | 2022-08-16 | Electromechanical braking system and vehicle |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116101238A (en) * | 2023-03-30 | 2023-05-12 | 小米汽车科技有限公司 | Brake control method, device, system, vehicle, medium and chip |
| CN116198463A (en) * | 2023-03-30 | 2023-06-02 | 小米汽车科技有限公司 | Brake control method, device, system, vehicle, medium and chip |
| CN117284259A (en) * | 2023-11-24 | 2023-12-26 | 宁波赛福汽车制动有限公司 | Vehicle braking control system and vehicle |
-
2022
- 2022-08-16 CN CN202222155488.8U patent/CN217945163U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116101238A (en) * | 2023-03-30 | 2023-05-12 | 小米汽车科技有限公司 | Brake control method, device, system, vehicle, medium and chip |
| CN116198463A (en) * | 2023-03-30 | 2023-06-02 | 小米汽车科技有限公司 | Brake control method, device, system, vehicle, medium and chip |
| CN117284259A (en) * | 2023-11-24 | 2023-12-26 | 宁波赛福汽车制动有限公司 | Vehicle braking control system and vehicle |
| CN117284259B (en) * | 2023-11-24 | 2024-02-27 | 宁波赛福汽车制动有限公司 | Vehicle braking control system and vehicle |
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