Brake system and vehicle

Abstract

The utility model discloses a brake system and vehicle, brake system includes: brake pedal, control unit and first brake execution unit, brake pedal is connected with at least one sensor, the sensor is used for detecting brake information of brake pedal, control unit is electrically connected with the sensor, first brake execution unit is connected with control unit, and the control unit is electrically connected with the sensor. The first brake execution unit brakes the wheels in a hydraulic driving mode. The brake pedal is electrically connected with the control unit, so that the sensor can detect brake information, the control unit can carry out analysis and calculation, hydraulic brake is carried out on wheels through the first brake execution unit, brake decoupling and accurate adjustment and distribution of brake force can be achieved, and the brake efficiency is improved. And the safety performance of the vehicle can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicles, and in particular to a braking system and a vehicle. Background Art

[0002] At present, the wire control braking technology leads the development direction of the current automotive braking field. However, the currently widely used electro-hydraulic and electro-mechanical composite braking technologies have certain limitations. In related technologies, when a driver steps on the brake pedal, the brake pedal is transmitted to the master cylinder through a mechanical transmission structure, and the master cylinder delivers hydraulic fluid to the caliper to perform braking. Such a mechanical transmission structure is relatively complex and costly. Content of the Utility Model

[0003] The utility model aims to at least solve one of the technical problems existing in the prior art. For this purpose, an object of the utility model is to provide a braking system that can control braking in the form of an electrical signal based on the driver's intention.

[0004] The utility model further provides a vehicle.

[0005] The braking system according to the utility model includes: a brake pedal, a control unit, and a first braking execution unit. The brake pedal is connected with at least one sensor for detecting braking information of the brake pedal. The control unit is electrically connected with the sensor, and the first braking execution unit is connected with the control unit. The first braking execution unit brakes the wheels in a hydraulic drive manner.

[0006] In the braking system according to the utility model, the brake pedal is electrically connected with the control unit. Such a setting enables the sensor to detect braking information, so that the control unit can perform analysis and calculation, and then the first braking execution unit performs hydraulic braking on the wheels, thereby realizing brake decoupling and precise adjustment and distribution of braking force, and further improving the safety performance of the vehicle.

[0007] In some examples of the utility model, the braking system further includes a pressure building unit, which includes a plurality of pressure sources. All the plurality of pressure sources are connected to the first braking execution unit through a hydraulic circuit, and at least one of the pressure sources is electrically connected with the control unit.

[0008] In some examples of the utility model, the pressure building unit further includes a first pressure source, a master cylinder, and a first pressure building oil circuit. The master cylinder is connected to the first braking execution unit through the first pressure building oil circuit. A first control valve is arranged on the first pressure building oil circuit. The first pressure source is used to drive the medium to flow from the master cylinder to the first braking execution unit through the first pressure building oil circuit.

[0009] In some examples of the present utility model, the first pressure source is further configured to drive the medium to flow from the first braking actuator unit to the master cylinder through the first pressure - building oil circuit.

[0010] In some examples of the present utility model, the braking system further includes: a current sensor and a first rotation angle sensor. The current sensor is configured to detect the current of the first pressure source, and the current sensor is electrically connected to the control unit. The first rotation angle sensor is configured to detect the rotation angle and position of the first pressure source, and the first rotation angle sensor is electrically connected to the control unit.

[0011] In some examples of the present utility model, the pressure - building unit further includes: a second pressure source and a second pressure - building oil circuit. The master cylinder is connected to the first braking actuator unit through the second pressure - building oil circuit. A second control valve is provided on the second pressure - building oil circuit. The second pressure source is configured to drive the hydraulic fluid to flow from the master cylinder to the first braking actuator unit through the second pressure - building oil circuit.

[0012] In some examples of the present utility model, the second pressure source is provided on the second pressure - building oil circuit.

[0013] In some examples of the present utility model, the second pressure source is provided between the second control valve and the first braking actuator unit.

[0014] In some examples of the present utility model, the first pressure - building oil circuit and the second pressure - building oil circuit are connected to the master cylinder through a first pipeline, and a third control valve is provided on the first pipeline.

[0015] In some examples of the present utility model, the master cylinder includes: a cylinder block and a piston. The piston is movably disposed within the cylinder block to form a variable - volume medium accommodation chamber within the cylinder block. The medium accommodation chamber is configured to be connected to the first braking actuator unit; the first pressure source is configured to drive the piston to move.

[0016] In some examples of the present utility model, the braking system further includes: a reservoir. A liquid - path connection can be established between the reservoir and the medium accommodation chamber through a second pipeline.

[0017] In some examples of the present utility model, the braking system further includes a third pipeline. The third pipeline is connected between the medium accommodation chamber and the reservoir, and a fourth control valve is provided on the third pipeline.

[0018] In some examples of the present utility model, the fourth control valve is a one - way valve, and the guiding path of the one - way valve is from the reservoir to the medium accommodation chamber.

[0019] In some examples of the present utility model, the third pipeline is arranged on one side of the second pipeline away from the piston.

[0020] In some examples of the present utility model, the braking system further includes: a pressure sensor for detecting the pressure in the master cylinder.

[0021] In some examples of the present utility model, the master cylinder includes: a reset member that is respectively in abutting cooperation with the cylinder block and the piston to provide a reset force to the piston.

[0022] In some examples of the present utility model, the first braking execution unit includes: a first caliper and a first control oil circuit, and the first control oil circuit is connected between the pressure building unit and the first caliper to control the oil flow between the pressure building unit and the first caliper.

[0023] In some examples of the present utility model, a fifth control valve is arranged on the first control oil circuit.

[0024] In some examples of the present utility model, the first braking execution unit includes: a second control oil circuit, the second control oil circuit is connected between the first caliper and a plurality of the pressure building units, and a sixth control valve is arranged on the second control oil circuit.

[0025] In some examples of the present utility model, one end of the second control oil circuit away from the first caliper is connected to one end of the second pressure building oil circuit near the master cylinder of the second pressure source.

[0026] In some examples of the present utility model, an accumulator is connected to the second control oil circuit.

[0027] In some examples of the present utility model, the braking system further includes: a second braking execution unit, the second braking execution unit is electrically connected to the control unit, and the second braking execution unit brakes the wheels in an electrically driven manner.

[0028] In some examples of the present utility model, the second braking execution unit includes: at least two second calipers and at least two electromechanical brakes, at least two of the electromechanical brakes correspond to at least two of the second calipers one by one, the electromechanical brakes include a motor and a transmission mechanism, the motor is electrically connected to the control unit, the motor is in transmission connection with the transmission mechanism, and the transmission mechanism is in transmission connection with the second caliper.

[0029] In some examples of the present utility model, the first braking execution unit includes a first caliper, and the first caliper is used to brake one of the front wheels and the rear wheels; the second braking execution unit includes a second caliper, and the second caliper is used to brake the other of the front wheels and the rear wheels.

[0030] In some examples of the present utility model, the first braking execution unit is used to brake the front wheels, and the second braking execution unit is used to brake the rear wheels.

[0031] In some examples of the present utility model, at least one of the sensors includes: a displacement sensor, a second rotation angle sensor, and a force sensor. The displacement sensor is used to detect the braking displacement of the brake pedal, the second rotation angle sensor is used to detect the rotation angle of the brake pedal, and the force sensor is used to detect the acting force received by the brake pedal.

[0032] The vehicle according to the present utility model includes: the braking system described above.

[0033] The additional aspects and advantages of the present utility model will be partly given in the following description, partly will become obvious from the following description, or will be understood through the practice of the present utility model. Description of the Drawings

[0034] The above and / or additional aspects and advantages of the present utility model will become obvious and easy to understand from the description of the embodiments in conjunction with the following drawings, wherein:

[0035] Figure 1 is a schematic structural diagram of a braking system according to an embodiment of the present utility model.

[0036] Reference Signs:

[0037] 100, braking system; 111, brake pedal; 112, sensor; 120, control unit; 130, pressure building unit; 131, liquid reservoir; 132, master brake cylinder; 133, first pressure source; 134, cylinder block; 135, piston; 136, reset member; 137, current sensor; 138, first rotation angle sensor; 139, third control valve; 140, fourth control valve; 141, pressure sensor; 142, second pipeline; 143, third pipeline; 150, first braking execution unit; 151, first caliper; 152, first pipeline; 153, first pressure building oil circuit; 154, first control valve; 155, second pressure building oil circuit; 156, second pressure source; 157, second control valve; 158, first control oil circuit; 159, fifth control valve; 160, second control oil circuit; 161, sixth control valve; 162, accumulator; 170, second braking execution unit; 171, second caliper; 172, electromechanical brake. Detailed Embodiments

[0038] Embodiments of the present utility model will be described in detail below. The embodiments described with reference to the accompanying drawings are exemplary. Embodiments of the present utility model will be described in detail below.

[0039] Reference will be made below Figure 1 to describe a braking system 100 according to an embodiment of the present utility model. The braking system 100 is applied to a vehicle.

[0040] As Figure 1 shown, the braking system 100 according to the present utility model includes: a brake pedal 111, a control unit 120, and a first brake execution unit 150. At least one sensor 112 is connected to the brake pedal 111. The sensor 112 is used to detect braking information of the brake pedal 111. The control unit 120 is electrically connected to the sensor 112. The first brake execution unit 150 is connected to the control unit 120. The first brake execution unit 150 brakes the wheels in a hydraulic drive manner.

[0041] It can be understood that the brake pedal 111, the control unit 120, and the first brake execution unit 150 constitute the main structure of the braking system 100. The brake pedal 111, the control unit 120, and the first brake execution unit 150 are sequentially connected. When the driver steps on the brake pedal 111, the brake pedal 111 transmits a signal to the control unit 120. The control unit 120 analyzes and calculates, and thus can use the first brake execution unit 150 to brake the vehicle. At least one sensor 112 is electrically connected to the control unit 120. Such a setting can enable at least one sensor 112 to detect the movement condition and braking intention of the brake pedal 111 after the driver steps on the brake pedal 111, then integrate the movement condition and braking intention of the brake pedal 111 into corresponding braking information, and then transmit an electrical signal to the control unit 120, so as to facilitate the control unit 120 to perform a suitable braking method on the vehicle after analysis and calculation. Moreover, there is no need for a mechanical transmission structure between the brake pedal 111 and the control unit 120, and only electrical connection is required to transmit the electrical signal. This can reduce costs and layout difficulties. Such a setting can improve the integration standardization of the vehicle and optimize the space, thereby improving the braking stability of the vehicle, and further improving the safety performance of the vehicle and meeting the requirements of future autonomous driving.

[0042] Thus, by electrically connecting the brake pedal 111 and the control unit 120, such a setting can enable the sensor 112 to detect braking information, so that the control unit 120 can analyze and calculate, and then perform hydraulic braking on the wheels through the first brake execution unit 150, thereby realizing brake decoupling, precise adjustment and distribution of braking force, and braking redundancy, and further improving the safety performance of the vehicle.

[0043] In addition, as Figure 1 shown, the braking system 100 further includes a pressure building unit 130. The pressure building unit 130 includes a plurality of pressure sources, and the plurality of pressure sources are all connected to the first braking actuator 150 through a hydraulic circuit. At least one pressure source is electrically connected to the control unit 120. That is to say, the pressure building unit 130 is connected to the control unit 140, so that the control unit 120 can control the pressure building unit 130 to build pressure. Moreover, a hydraulic circuit is provided between the first braking actuator 150 and the plurality of pressure sources, so that the pressure building unit 130 can build pressure on the first braking actuator 150, and further the first braking actuator 120 can brake the wheels.

[0044] In addition, as Figure 1 shown, the pressure building unit 130 further includes a first pressure source 133, a master brake cylinder 132, and a first pressure building oil circuit 153. The master brake cylinder 132 is connected to the first braking actuator 150 through the first pressure building oil circuit 153. A first control valve 154 is provided on the first pressure building oil circuit 153. The first pressure source 133 is used to drive the medium to flow from the master brake cylinder 132 to the first braking actuator 150 through the first pressure building oil circuit 153.

[0045] It can be understood that the master brake cylinder 132 and the first braking actuator 150 are connected through the first pressure building oil circuit 153, which is convenient for the master brake cylinder 132 to build pressure on the first braking actuator 150. The first control valve 154 is located on the first pressure building oil circuit 153, so that the first control valve 154 can control the on-off of the first pressure building oil circuit 153. The first pressure source 133 is connected to one side of the master brake cylinder 132. Such a setting can enable the first pressure source 133 to provide a driving force for the master brake cylinder 132, which is convenient for the master brake cylinder 132 to deliver the medium to the first braking actuator 150 through the first pressure building oil circuit 153. Moreover, the first pressure source 133 is also used to drive the medium to flow from the first braking actuator 150 to the master brake cylinder 132 through the first pressure building oil circuit 153, so as to realize pressure building and pressure relief, and further facilitate the braking system 100 to brake the vehicle. For example, the first pressure source 133 is a motor.

[0046] In addition, as Figure 1As shown, the braking system 100 further includes: a current sensor 137 and a first rotation angle sensor 138. The current sensor 137 is used to detect the current of the first pressure source 133, and the current sensor 137 is electrically connected to the control unit 140. The first rotation angle sensor 138 is used to detect the rotation angle and position of the first pressure source 133, and the first rotation angle sensor 138 is electrically connected to the control unit 140. That is to say, the current sensor 137 is located on one side of the first pressure source 133, so that the current sensor 137 can detect the current of the first pressure source 133, and the current sensor 137 is electrically connected to the control unit 120, so that the control unit 120 can analyze the current of the first pressure source 133 to control the pressure building of the master brake cylinder 132. The first rotation angle sensor 138 is located on the other side of the first pressure source 133, so that the first rotation angle sensor 138 can detect the rotation angle and position of the first pressure source 133, and the first rotation angle sensor 138 is electrically connected to the control unit 120, so that the control unit 120 can control the pressure building of the master brake cylinder 132 according to the rotation angle and position of the driving member 133.

[0047] In addition, as Figure 1 shown, the pressure building unit 130 further includes: a second pressure source 156 and a second pressure building oil circuit 155. The master brake cylinder 132 is connected to the first brake actuator unit 150 through the second pressure building oil circuit 155. A second control valve 157 is provided on the second pressure building oil circuit 155. The second pressure source 156 is used to drive the medium to flow from the master brake cylinder 132 through the second pressure building oil circuit 155 to the first brake actuator unit 150. It can be understood that the master brake cylinder 132 is connected to the first brake actuator unit 150 through the second pressure building oil circuit 155, so as to facilitate the pressure building of the master brake cylinder 132 on the first brake actuator unit 150. The second control valve 157 is located on the second pressure building oil circuit 155, so that the second control valve 157 can control the on-off of the second pressure building oil circuit 155, so as to facilitate the master brake cylinder 132 to transport the medium through the second pressure building oil circuit 155 to the first brake actuator unit 150, so as to facilitate the braking system 100 to brake the vehicle. For example, the second pressure source 156 is a motor and a liquid pump. Among them, the motor drives the liquid pump to operate, so that the motor and the liquid pump can drive the medium to flow from the master brake cylinder 132 through the second pressure building oil circuit 155 to the first brake actuator unit 150.

[0048] Among them, as Figure 1 shown, the second pressure source 156 is provided on the second pressure building oil circuit 155, and the second pressure source 156 is provided between the second control valve 157 and the first brake actuator unit 150. Such a setting can make the second control valve 157 control the on-off of the second pressure building oil circuit 155, so as to facilitate the master brake cylinder 132 to transport the medium through the second pressure building oil circuit 155 to the first brake actuator unit 150, so as to facilitate the braking system 100 to brake the vehicle.

[0049] In addition, as Figure 1 shown, the first pressure building oil circuit 153 and the second pressure building oil circuit 155 are connected to the brake master cylinder 132 through the first pipeline 152, and a third control valve 139 is arranged on the first pipeline 152. That is to say, the third control valve 139 is located on the first pipeline 152. Such a setting can enable the third control valve 139 to control the on-off of the first pipeline 152, so that the third control valve 139 can control the connection between the brake master cylinder 132 and the first pressure building oil circuit 153 and the second pressure building oil circuit 155. In the embodiment as Figure 1 shown, the third control valve 139 is a normally open valve.

[0050] In embodiments not shown in other figures, the third control valve 139 can also be omitted.

[0051] Among them, as Figure 1 shown, the brake master cylinder 132 includes: a cylinder block 134 and a piston 135. A medium accommodating cavity with variable volume is formed in the cylinder block 134, so that the medium can be stored in the cylinder block 134. The piston 135 is located in the cylinder block 134, and the piston 135 can move relative to the cylinder block 134. The first pressure source 133 can drive the piston 135 to move, so that the medium in the medium accommodating cavity can flow to the first brake execution unit 150, and further the piston 135 can build pressure to assist the movement of the brake master cylinder 132. For example, the cylinder block 134 is a single-chamber cylinder. Such a setting can make the structure of the brake master cylinder 132 simple and ensure the pressure building stability of the brake master cylinder 132.

[0052] In addition, as Figure 1 shown, the brake system 100 further includes: a reservoir 131, and the reservoir 131 and the medium accommodating cavity are connected by a second pipeline 142 in a liquid path connection. That is to say, the second pipeline 142 connects the reservoir 131 and the medium accommodating cavity, and the brake master cylinder 132 is located between the reservoir 131 and the first brake execution unit 150, so as to facilitate the brake master cylinder 132 to transport the medium in the reservoir 131 to the first brake execution unit 150, and further facilitate the first brake execution unit 150 to perform braking.

[0053] In addition, as Figure 1As shown, the braking system 100 further includes a third pipeline 143. The third pipeline 143 is connected between the medium accommodating cavity and the reservoir 131. A fourth control valve 140 is provided on the third pipeline 143. The fourth control valve 140 is a one-way valve, and the guiding path of the one-way valve is from the reservoir 131 to the medium accommodating cavity. The third pipeline 143 is arranged on the side of the second pipeline 142 away from the piston 135. It can be understood that the third pipeline 143 connects the reservoir 131 and the medium accommodating cavity, so as to facilitate the master cylinder 132 to deliver the medium in the reservoir 131 to the first braking execution unit 150. The fourth control valve 140 is located on the third pipeline 143, so that the fourth control valve 140 can control the on-off of the third pipeline 143. Moreover, the fourth control valve 140 is a one-way valve, so that only the medium in the reservoir 131 can flow to the medium accommodating cavity. The third pipeline 143 and the second pipeline 142 are arranged at intervals, so that the medium can flow into the first braking execution unit 150 through the first pipeline 152 and then flow back to the master cylinder 132 through the second pipeline 142, thus realizing the recycling of the medium, and the flow path of the medium is not easily confused, which is convenient for the braking system 100 to brake the vehicle. When not braking, the second pipeline 142 connects the reservoir 131 and the medium accommodating cavity, and the oil in the medium accommodating cavity is replenished through the second pipeline 142. When braking, the piston moves. If the oil pressure in the medium accommodating cavity of the master cylinder is too low, the pressure difference between the medium accommodating cavity and the reservoir 131 can cause the fourth control valve 140 to open, so that the reservoir 131 replenishes the oil in the medium accommodating cavity through the third pipeline 143, ensuring that the oil can flow from the master cylinder to the first braking execution unit 150 and realizing the braking of the vehicle.

[0054] In addition, as Figure 1 shown, the braking system 100 further includes: a pressure sensor 141. The pressure sensor 141 is used to detect the pressure in the master cylinder 132. The pressure sensor 141 is located between the fourth control valve 140 and the master cylinder 132, so that the pressure sensor 141 can detect the pressure in the master cylinder 132, that is, detect the pressure in the cylinder block 134 when the piston 135 builds pressure with assistance, which is convenient for the control unit 120 to analyze and calculate the corresponding braking mode.

[0055] In addition, as Figure 1 shown, the braking system 100 further includes: a reset member 136. The reset member 136 is in abutting cooperation with the cylinder block 134 and the piston 135 respectively, so as to provide a reset force for the piston 135. It can be understood that the reset member 136 is located between the piston 135 and the cylinder block 134, so that the reset member 136 can provide a reciprocating force for the piston 135, which is convenient for the piston 135 to reciprocate in the cylinder block 134.

[0056] In addition, as Figure 1As shown, the first braking execution unit 150 includes: a first caliper 151 and a first control oil circuit 158. The first control oil circuit 153 is connected between the pressure - building unit 130 and the first caliper 151 to control the oil flow between the pressure - building unit 130 and the first caliper 151. A fifth control valve 159 is provided on the first control oil circuit 153. That is to say, the first caliper 151 brakes the wheel. The first control oil circuit 153 is located between the pressure - building unit 130 and the first caliper 151, so that the medium in the pressure - building unit 130 can flow into the first control oil circuit 153, and then through the first control oil circuit 153, the first caliper 151 brakes the wheel. Moreover, the fifth control valve 159 is located on the first control oil circuit 153. Such a setting can enable the fifth control valve 159 to control the on - off of the liquid path between the pressure - building unit 130 and the first caliper 151. When the driver needs to brake the vehicle, the pressure - building unit 130 inputs the medium into the first caliper 151 through the first control oil circuit 153, thereby braking the vehicle. When the fifth control valve 159 blocks the liquid path between the pressure - building unit 130 and the first caliper 151, the normal driving of the vehicle can be ensured.

[0057] In addition, as Figure 1 shown, the first braking execution unit 150 includes: a second control oil circuit 160. The second control oil circuit 160 is connected between the first caliper 151 and multiple pressure - building units 130. A sixth control valve 161 is provided on the second control oil circuit 160. One end of the second control oil circuit 160 far from the first caliper 151 is connected to one end of the second pressure - building source 156 near the brake master cylinder 132 on the second pressure - building oil circuit 155. It can be understood that the second control oil circuit 160 is located between the pressure - building unit 130 and the first caliper 151, so that the medium in the first caliper 151 can flow into the second control oil circuit 160, and then flow to the brake master cylinder 132 through the second control oil circuit 160. Moreover, the sixth control valve 161 is located on the first control oil circuit 153. Such a setting can enable the sixth control valve 161 to control the on - off of the liquid path between the pressure - building unit 130 and the first caliper 151.

[0058] In addition, as Figure 1 shown, the braking system 100 further includes: an accumulator 162. The accumulator 162 is connected to the second control oil circuit 160, so that the accumulator 162 can store the medium in the second control oil circuit 160.

[0059] In addition, as Figure 1As shown, the braking system further includes: a second braking execution unit 170, which is electrically connected to the control unit 120. The second braking execution unit 170 brakes the wheels in an electrically driven manner. The second braking execution unit 170 includes: at least two second calipers 171 and at least two electromechanical brakes 172. The at least two electromechanical brakes 172 correspond to the at least two second calipers 171 one by one. The electromechanical brake 172 includes a motor and a transmission mechanism. The motor is electrically connected to the control unit 120, the motor is drivingly connected to the transmission mechanism, and the transmission mechanism is drivingly connected to the second caliper 171.

[0060] It can be understood that the at least two second calipers 171 and the at least two electromechanical brakes 172 constitute the main structure of the second braking execution unit 170. The at least two second calipers 171 respectively control the left and right wheels of the vehicle. The two electromechanical brakes 172 correspond to the two second calipers 171 one by one, so as to facilitate the electromechanical brake 172 to control the second caliper 171 to brake the wheels. Moreover, the motor and the transmission mechanism constitute the main structure of the electromechanical brake 172. The motor, the transmission mechanism and the second caliper 171 are sequentially connected, so that the force provided by the motor to the transmission mechanism can be transmitted to the second caliper 171, and further facilitate the second caliper 171 to brake the wheels.

[0061] Optionally, as Figure 1 shown, the first braking execution unit 150 includes a first caliper 151, and the first caliper 151 is used to brake one of the front wheels and the rear wheels; the second braking execution unit 170 includes a second caliper 171, and the second caliper 171 is used to brake the other of the front wheels and the rear wheels. For example, the first caliper 151 brakes the front wheels, and the second caliper 171 brakes the rear wheels, so that the first braking execution unit 150 can brake the front wheels and the second braking execution unit 170 can brake the rear wheels. Such a setting can enable the vehicle to have at least two braking force systems, so as to achieve precise regulation and distribution of the first braking execution unit 150 and the second braking execution unit 170. Moreover, such a setting has the characteristics of small volume, light weight, low cost and zero drag of the second braking execution unit 170, so that when one of the braking execution units fails, it can ensure that the other braking execution unit continues to brake, and further improve the safety performance of the vehicle.

[0062] Particularly, as Figure 1 shown, the first braking execution unit 150 is used to brake the front wheels, and the second braking execution unit 170 is used to brake the rear wheels. Such a setting can enable the first braking execution unit 150 and the second braking execution unit 170 to brake the front wheels and the rear wheels respectively, so as to achieve precise regulation and distribution of the first braking execution unit 150 and the second braking execution unit 170, and further improve the safety performance of the vehicle.

[0063] In addition, as Figure 1 shown, at least one sensor 112 includes: a displacement sensor, a second rotation angle sensor, and a force sensor. The displacement sensor is used to detect the braking displacement of the brake pedal 111, the second rotation angle sensor is used to detect the rotation angle of the brake pedal 111, and the force sensor is used to detect the acting force received by the brake pedal 111. It can be understood that the sensor 112 can be one or more of the displacement sensor, the second rotation angle sensor, and the force sensor, and the displacement sensor, the second rotation angle sensor, and the force sensor respectively detect the displacement, rotation angle, and acting force received by the brake pedal 111. When the displacement sensor, the second rotation angle sensor, and the force sensor are used, the displacement sensor, the second rotation angle sensor, and the force sensor are redundant to each other. When one of the sensors 112 is damaged, the other sensors 112 can still detect the movement condition of the brake pedal 111 and the braking intention, so as to facilitate the control unit 120 to perform a suitable braking method on the vehicle after analysis and calculation, and further improve the safety performance of the vehicle.

[0064] The vehicle according to the embodiment of the present invention includes: the braking system 100 of the above embodiment, so that braking decoupling, precise adjustment and distribution of braking force, and braking redundancy can be achieved, and further the safety performance of the vehicle can be improved.

[0065] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0066] In the description of the present invention, the "first feature" and "second feature" may include one or more of such features. In the description of the present invention, the meaning of "a plurality" is two or more. In the description of the present invention, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through additional features therebetween. In the description of the present invention, the first feature being "above", "above" and "on" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature has a higher horizontal height than the second feature.

[0067] In the description of this specification, the description referring to terms such as "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example.

[0068] Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present utility model, and the scope of the present utility model is defined by the claims and their equivalents.

Claims

1. A braking system, characterized in that: include: A brake pedal, wherein the brake pedal is connected to at least one sensor, and the sensor is used to detect braking information of the brake pedal; a control unit, the control unit being electrically connected to the sensor; A first brake actuating unit is connected to the control unit, and the first brake actuating unit brakes the wheel in a hydraulically driven manner.

2. The braking system according to claim 1, characterized in that: Also includes: A pressure building unit, wherein the pressure building unit comprises a plurality of pressure sources, wherein the plurality of pressure sources are all connected to the first brake execution unit fluid circuit, and at least one of the pressure sources is electrically connected to the control unit.

3. The braking system according to claim 2, characterized in that: The pressure building unit further includes: a first pressurized source; Brake master cylinder; The first pressure-building oil circuit, the brake master cylinder is connected to the first brake execution unit through the first pressure-building oil circuit, a first control valve is arranged on the first pressure-building oil circuit, and the first pressurizing source is used to drive the medium from the brake master cylinder to the first brake execution unit through the first pressure-building oil circuit.

4. The braking system according to claim 3, characterized in that: The first pressurizing source is also used to drive the medium to flow from the first brake execution unit to the brake master cylinder through the first pressure-building oil path.

5. The braking system according to claim 3, characterized in that: Also includes: a current sensor, the current sensor being used to detect the current of the first pressurizing source, the current sensor being electrically connected to the control unit; and / or A first rotation angle sensor is used to detect the rotation angle and position of the first pressurizing source, and the first rotation angle sensor is electrically connected to the control unit.

6. The braking system according to claim 3, characterized in that: The pressure building unit further includes: The second pressurizing source and the second pressure-building oil circuit, The master brake cylinder is connected to the first brake execution unit via the second pressure-building oil circuit, a second control valve is provided on the second pressure-building oil circuit, and the second pressurizing source is used to drive the medium from the master brake cylinder to the first brake execution unit via the second pressure-building oil circuit.

7. The braking system according to claim 6, characterized in that: The second pressurizing source is disposed on the second pressure building oil passage.

8. The braking system according to claim 7, characterized in that: The second pressurizing source is provided between the second control valve and the first brake actuating unit.

9. The braking system according to claim 6, characterized in that: The first pressure-building oil circuit and the second pressure-building oil circuit are connected to the brake master cylinder via a first pipeline, and a third control valve is disposed on the first pipeline.

10. The braking system according to claim 3, characterized in that: The brake master cylinder comprises: Cylinder body; a piston, the piston being movably disposed in the cylinder body to form a medium accommodating chamber with a variable volume in the cylinder body, the medium accommodating chamber being used to be connected to the first brake actuating unit; The first pressurizing source is used to drive the piston to move.

11. The brake system according to claim 10, characterized in that: Also includes: A liquid reservoir, wherein the liquid reservoir and the medium containing chamber can be connected via a second pipeline liquid circuit.

12. The braking system according to claim 11, characterized in that: The brake system further comprises a third pipeline, wherein the third pipeline is connected between the medium containing chamber and the reservoir, and a fourth control valve is arranged on the third pipeline.

13. The braking system according to claim 12, characterized in that: The fourth control valve is a one-way valve, and a guide path of the one-way valve is from the liquid reservoir to the medium accommodating chamber.

14. The braking system according to claim 12, characterized in that: The third pipeline is arranged on a side of the second pipeline away from the piston.

15. The braking system according to claim 10, characterized in that: Also includes: A pressure sensor is used to detect the pressure in the brake master cylinder.

16. The braking system according to claim 10, characterized in that: The brake master cylinder comprises: A reset member is respectively abutted and matched with the cylinder body and the piston to provide a reset force to the piston.

17. The braking system according to claim 6, characterized in that: The first brake execution unit comprises: First caliper; A first control oil circuit, wherein the first control oil circuit is connected between the pressure building unit and the first caliper to control the flow of oil between the pressure building unit and the first caliper.

18. The braking system according to claim 17, characterized in that: A fifth control valve is arranged on the first control oil circuit.

19. The braking system according to claim 17, characterized in that: The first brake execution unit comprises: A second control oil circuit, wherein the second control oil circuit is connected between the first caliper and the plurality of pressure building units, and a sixth control valve is disposed on the second control oil circuit.

20. The braking system according to claim 19, characterized in that One end of the second control oil circuit away from the first caliper is connected to one end of the second pressure-building oil circuit where the second pressurizing source is close to the master brake cylinder.

21. The braking system according to claim 19, characterized in that Also includes: An accumulator is connected to the second control oil circuit.

22. The braking system according to claim 2, characterized in that: Also includes: A second brake execution unit is electrically connected to the control unit, and the second brake execution unit brakes the wheel in an electrically driven manner.

23. The braking system according to claim 22, characterized in that The second brake execution unit comprises: at least two second calipers; At least two electronic mechanical brakes, at least two of the electronic mechanical brakes correspond one-to-one to at least two of the second calipers, the electronic mechanical brakes include a motor and a transmission mechanism, the motor is electrically connected to the control unit, the motor is transmission-connected to the transmission mechanism, and the transmission mechanism is transmission-connected to the second calipers.

24. The braking system according to claim 22, characterized in that The first brake actuation unit includes a first caliper, and the first caliper is used to brake one of the front wheel and the rear wheel; The second brake actuating unit includes a second caliper for braking the other of the front wheel and the rear wheel.

25. The braking system according to claim 22, characterized in that The first brake actuating unit is used for braking the front wheels, and the second brake actuating unit is used for braking the rear wheels.

26. The braking system according to any one of claims 1 to 25, characterized in that: At least one of the sensors comprises: a displacement sensor, the displacement sensor being used to detect the braking displacement of the brake pedal; and / or a second rotation angle sensor, the second rotation angle sensor being used to detect a rotation angle of the brake pedal; and / or A force sensor is used to detect the force applied to the brake pedal.

27. A vehicle, characterized in that: include: The braking system of any one of claims 1 to 26.

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