CN114684256A - Steering brake system and vehicle with same - Google Patents
Steering brake system and vehicle with same Download PDFInfo
- Publication number
- CN114684256A CN114684256A CN202011612422.6A CN202011612422A CN114684256A CN 114684256 A CN114684256 A CN 114684256A CN 202011612422 A CN202011612422 A CN 202011612422A CN 114684256 A CN114684256 A CN 114684256A
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- Prior art keywords
- brake
- steering
- oil
- cylinder
- subsystem
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D5/00—Power-assisted or power-driven steering
- B62D5/06—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle
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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
- B60T13/10—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 fluid assistance, drive, or release
- B60T13/12—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 fluid assistance, drive, or release the fluid being liquid
- B60T13/14—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 fluid assistance, drive, or release the fluid being liquid using accumulators or reservoirs fed by pumps
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D1/00—Steering controls, i.e. means for initiating a change of direction of the vehicle
- B62D1/02—Steering controls, i.e. means for initiating a change of direction of the vehicle vehicle-mounted
- B62D1/04—Hand wheels
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D1/00—Steering controls, i.e. means for initiating a change of direction of the vehicle
- B62D1/02—Steering controls, i.e. means for initiating a change of direction of the vehicle vehicle-mounted
- B62D1/22—Alternative steering-control elements, e.g. for teaching purposes
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Regulating Braking Force (AREA)
- Valves And Accessory Devices For Braking Systems (AREA)
Abstract
The invention discloses a steering brake system and a vehicle with the same. The steering brake system is used for a vehicle, and comprises: turn to the subsystem, turn to the subsystem through turning to the intercommunication that the oil circuit realized with the oil tank, turn to the subsystem and include: a steering column adapted to be connected with a steering wheel, and the steering wheel is adapted to be coupled or decoupled to wheels of the vehicle by the steering subsystem; and the braking subsystem is communicated with the oil tank through a braking oil way. According to the steering braking system, the same oil tank is used for providing hydraulic power for the steering subsystem and the braking subsystem, so that the steering subsystem and the braking subsystem share one set of oil circuit, the integration degree of the steering braking system is higher, the number of parts is reduced, and the occupied space is saved; moreover, the steering wheel can be coupled with or decoupled from the wheels of the vehicle through the steering subsystem, so that the game experience of a user is improved.
Description
Technical Field
The invention relates to the field of vehicles, in particular to a steering brake system and a vehicle with the same.
Background
For the current vehicles, a steering system and a braking system respectively adopt a set of power sources to provide hydraulic power for each system, so that the steering system and the braking system respectively adopt more parts, occupy large arrangement space and have high cost, and vacuum pumps adopted by some vehicle braking systems cannot be arranged due to space limitation.
Disclosure of Invention
The present invention aims to solve at least to some extent the above-mentioned technical problems of the prior art. To this end, the invention proposes a steering brake system.
The invention also provides a vehicle with the steering brake system.
A steering brake system according to an embodiment of the present invention is for a vehicle, the steering brake system including: turn to the subsystem, turn to the subsystem through turning to the intercommunication that the oil circuit realized with the oil tank, turn to the subsystem and include: a steering column adapted to be connected with a steering wheel, and the steering wheel is adapted to be coupled or decoupled to wheels of the vehicle by the steering subsystem; and the braking subsystem is communicated with the oil tank through a braking oil way.
According to the steering braking system disclosed by the embodiment of the invention, the same oil tank is used for providing hydraulic power for the steering subsystem and the braking subsystem, so that the integration degree of the steering braking system is higher, the number of parts is reduced, and the occupied space is saved; and the steering wheel can be coupled with or decoupled from the wheels of the vehicle through the steering subsystem so as to meet the dual-mode requirements of the driving mode and the game mode of the vehicle.
According to some embodiments of the invention, the steering subsystem further comprises: the steering oil path is suitable for being connected to the rotary valve, and is communicated with an oil inlet valve port of the rotary valve; and
the steering gear includes: the steering gear comprises a steering gear housing (141) and a steering gear piston (146) arranged in the steering gear housing (141), the steering gear piston (146) divides the steering gear housing (141) into a first cylinder and a second cylinder, an oil outlet valve port of the rotary valve is selectively communicated with the first cylinder or the second cylinder to push the steering gear piston (146) to move, and the steering gear piston (146) is suitable for being connected with a wheel.
Furthermore, a first push rod is arranged in the first cylinder, one end of the first push rod, which extends out of the steering gear shell, is constructed as a first wheel connecting end, a second push rod is arranged in the second cylinder, one end of the second push rod, which extends out of the steering gear shell, is constructed as a second wheel connecting end, and both one end of the first push rod, which extends into the steering gear shell, and one end of the second push rod, which extends into the steering gear shell, are connected with the steering gear piston.
According to some embodiments of the invention, a steering solenoid valve is disposed on the steering piston, the steering solenoid valve selectively communicating the first cylinder and the second cylinder, and the steering wheel is decoupled from the wheel when the first cylinder and the second cylinder are communicated; the steering wheel is coupled with the wheel when the first cylinder and the second cylinder are disconnected from communication.
According to some embodiments of the present invention, a steering oil return pipe is further disposed between the rotary valve and the oil tank, and when an oil outlet valve port of the rotary valve is communicated with one of the first cylinder and the second cylinder, oil in the other cylinder is forced to flow back to the rotary valve and flow back to the oil tank through the steering oil return pipe.
According to some embodiments of the invention, the braking subsystem comprises: the brake pedal is provided with a piston assembly and a brake caliper, the brake oil path is suitable for being connected to an oil inlet hole of the brake pedal with the piston assembly, an oil outlet hole of the brake pedal with the piston assembly is connected with the brake caliper through a brake oil path, a movable brake piston is arranged in the brake pedal with the piston assembly, the brake piston can selectively shield the oil inlet hole or the oil outlet hole, and a brake electromagnetic valve is arranged on the brake oil path.
Specifically, the brake caliper includes: a first caliper and a second caliper, the brake oil passage including: the oil outlet hole of the brake pedal belt piston assembly is connected with the first brake caliper through the brake first oil path, the oil outlet hole of the brake pedal belt piston assembly is connected with the second brake caliper through the brake second oil path, and the brake solenoid valve comprises: the first brake solenoid valve is arranged on the first oil path of the brake, and the second brake solenoid valve is arranged on the second oil path of the brake.
According to some embodiments of the invention, a brake oil return pipe is further provided between the brake oil path and the oil tank.
Furthermore, a third brake electromagnetic valve is arranged on the brake oil return pipe.
According to some embodiments of the invention, the steering brake system further comprises: anti-lock subsystem, anti-lock subsystem with still be provided with anti-lock oil return pipe between the oil tank, anti-lock oil return pipe is last to be provided with the ABS solenoid valve, anti-lock subsystem is suitable for through anti-lock oil return pipe with the pressure release is realized to the ABS solenoid valve.
According to another aspect of the embodiment of the invention, the vehicle comprises the steering brake system.
According to the vehicle provided by the embodiment of the invention, the steering brake system is arranged, and the integration degree of the steering brake system is higher, so that surplus space can be reserved for arrangement of other parts of the vehicle, meanwhile, the number of parts of the steering brake system is less, the strong-quantization design of the vehicle can be favorably realized, the coupling and decoupling of a steering wheel and wheels can be realized, and the user experience can be favorably improved.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
FIG. 1 is a schematic view of a steering brake system according to an embodiment of the present invention;
FIG. 2 is a schematic view of a diverter according to an embodiment of the present invention;
FIG. 3 is a schematic view of a brake housing according to an embodiment of the invention;
FIG. 4 is a schematic illustration of a vehicle according to an embodiment of the present invention.
Reference numerals:
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically connected, electrically connected or can communicate with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The following describes the steering brake system 100 and the vehicle 1000 according to the embodiment of the invention in detail with reference to fig. 1 to 4.
Referring to fig. 1, a steering brake system 100 according to an embodiment of the present invention may be used for a vehicle 1000, and the steering brake system 100 may include: the steering subsystem 10 is communicated with the oil tank 30 through a steering oil path 11, and the braking subsystem 20 is communicated with the oil tank 30 through a braking oil path 21.
The oil tank 30 may be provided in the main oil passage 31, the steering oil passage 11 and the brake oil passage 21 may be connected to the main oil passage 31, the oil pump 50 may be provided in the main oil passage 31, and after the oil (i.e., hydraulic oil) in the oil tank 30 enters the main oil passage 31, the oil pump 50 in the main oil passage 31 pressurizes the oil. A part of the oil in the main oil passage 31 enters the steering sub-system 10 through the steering oil passage 11, and the other part of the oil enters the braking sub-system 20 through the braking oil passage 21. The steering subsystem 10 and the braking subsystem 20 share a set of oil paths, so that the overall layout of the steering braking system 100 is more compact, and the number of parts can be reduced.
Specifically, when the steering wheel is turned, the steering wheel can drive the steering column 12 to rotate synchronously, when the steering wheel is coupled with the wheels of the vehicle 1000, the wheels turn along with the turning of the steering wheel, and the vehicle is in a driving mode; when the steering wheel is decoupled from the wheels of the vehicle 1000, the wheels do not steer as the steering wheel is turned, and at this time, the user can rotate the steering wheel at will to avoid unnecessary wear caused by friction between the wheels and the ground. When the steering wheel is decoupled from the wheels of the vehicle 1000, the vehicle 1000 may be in an in-place gaming mode, thereby enhancing the user's gaming experience.
According to the steering braking system 100 disclosed by the embodiment of the invention, the same oil tank 30 is used for providing hydraulic power for the steering subsystem 10 and the braking subsystem 20, so that the steering subsystem 10 and the braking subsystem 20 share one set of oil way, the integration degree of the steering braking system 100 is higher, the number of parts is reduced, and the occupied space is saved; furthermore, the steering wheel may be coupled to or decoupled from the wheels of vehicle 1000 via steering subsystem 10, thereby enhancing the user's gaming experience.
Referring to FIG. 1, steering subsystem 10 may further include: the rotary valve 13 and the steering gear 14, the rotary valve 13 is arranged on the steering column 12, the rotary valve 13 is suitable for rotating along with the rotation of the steering column 12, the steering oil path 11 is suitable for being connected to the rotary valve 13, the steering oil path 11 is communicated with an oil inlet valve port of the rotary valve 13, and at the moment, oil in the oil tank 30 can reach the rotary valve 13 through the steering oil path 11. The steering gear 14 is connected with the rotary valve 13 through a steering gear oil circuit, and the steering gear 14 is suitable for being connected with wheels to achieve wheel steering.
Specifically, referring to fig. 1-2, the diverter 14 includes: the steering gear comprises a steering gear housing 141, a movable steering gear piston 146 is arranged in the steering gear housing 141, the outer diameter of the steering gear piston 146 is equal to the inner diameter of the steering gear housing 141, the steering gear piston 146 divides the interior of the steering gear housing 141 into a first cylinder 142 and a second cylinder 143, an oil outlet valve port of the rotary valve 13 is selectively communicated with the first cylinder 142 or the second cylinder 143 to push the steering gear piston 146 to move, and the steering gear piston 146 is connected with wheels. Specifically, when the oil outlet port of the rotary valve 13 communicates with the first cylinder 142, the oil in the steering oil path 11 enters the first cylinder 142; thereby pushing the steering gear piston 146 to move from the first cylinder 142 to the second cylinder 143, and the steering gear piston 146 turns the wheels to the first direction; when the oil outlet port of the rotary valve 13 is communicated with the second cylinder 143, oil in the steering oil path 11 enters the second cylinder 143, so that the steering gear piston 146 is pushed to move from the second cylinder 143 to the first cylinder 142, and the steering gear piston 146 drives the wheels to steer in the second direction. The first direction is opposite to the second direction, and for example, the first direction may be a left direction, and the second direction may be a right direction, or the first direction may be a right direction, and the second direction may be a left direction.
Alternatively, the oil outlet port of the rotary valve 13 is communicated with the first cylinder 142 or the second cylinder 143, and the whole vehicle controller can control the rotary valve 13.
In one embodiment, a first push rod 144 is disposed within the first cylinder 142, and an end of the first push rod 144 extending out of the steering gear housing 141 is configured as a first wheel attachment end 1441, and the first wheel is adapted to be mounted to the first wheel attachment end 1441. A second push rod 145 is provided in the second cylinder 143, and an end of the second push rod 145 protruding out of the steering gear housing 141 is configured as a second wheel attachment end 1451, and the first wheel is adapted to be mounted to the second wheel attachment end 1451. Alternatively, the first wheel may be a left side wheel and the second wheel may be a right side wheel.
The end of the first push rod 144 that protrudes into the steering gear housing 141 and the end of the second push rod 145 that protrudes into the steering gear housing 141 are both connected to a steering gear piston 146. In other words, the inner ends of the first push rod 144 and the second push rod 145 are connected to the steering piston 146, so that when the steering piston 146 moves, the first push rod 144 and the second push rod 145 are driven to move synchronously. That is, the steering piston 146 is connected to the wheels through the first push rod 144 and the second push rod 145.
Referring to fig. 1, the steering oil circuit may include: a first steering gear oil passage 151 connected between the rotary valve 13 and the first cylinder 142, and a second steering gear oil passage 152 connected between the rotary valve 13 and the second cylinder 143. When the steering oil path 11 is communicated with the oil inlet port of the rotary valve 13, oil entering the oil inlet port of the rotary valve 13 can enter the first cylinder 142 through the first steering gear oil path 151, and can also enter the second cylinder 143 through the second steering gear oil path 152, meanwhile, the oil in the first cylinder 142 can flow back to the rotary valve 13 through the first steering gear oil path 151, and the oil in the second cylinder 143 can flow back to the rotary valve 13 through the second steering gear oil path 152.
When the oil entering the oil inlet valve port of the rotary valve 13 enters one of the first cylinder 142 and the second cylinder 143 through the oil outlet valve port, the oil in the other cylinder is pressed to flow back to the rotary valve 13. For example, when oil entering the oil inlet port of the rotary valve 13 enters the first cylinder 142, oil in the second cylinder 143 is pressurized to flow back to the rotary valve 13. Similarly, when the oil entering the oil inlet valve port of the rotary valve 13 enters the second cylinder 143 through the oil outlet valve port, the oil in the first cylinder 142 is pressed to flow back to the rotary valve 13. According to the steering subsystem 10 of the embodiment of the invention, an intermediate shaft is not required to be arranged, when a steering wheel is rotated, the steering column 12 can drive the rotary valve 13 to rotate together, and hydraulic oil enters the steering gear 14 from the steering gear oil way, so that the steering function is realized. Because of the reduction of the intermediate shaft, the weight of the steering sub-system 10 can be reduced.
Further, referring to fig. 1 to 2, a diverter solenoid valve 147 is provided on the diverter piston 146, and the diverter solenoid valve 147 selectively communicates the first cylinder 142 and the second cylinder 143. Specifically, when the steering gear solenoid valve 147 is in an open state, the first cylinder 142 and the second cylinder 143 are communicated, oil can flow between the first cylinder 142 and the second cylinder 143, and at this time, when the steering wheel is rotated, the first push rod 144 and the second push rod 145 do not move, so that decoupling of the steering wheel and the wheels can be realized, the decoupling function can be used for a home-play function of the vehicle 1000, and accelerated tire wear of the wheels due to rotation of the steering wheel is avoided; when the steering gear electromagnetic valve 147 is in a closed state, the first cylinder 142 and the second cylinder 143 are not communicated and are independent of each other, and when the steering wheel is rotated, the first push rod 144 and the second push rod 145 move, so that the coupling between the steering wheel and the wheels can be realized, and the normal steering can be realized.
Alternatively, the opening or closing of the diverter solenoid valve 147 may be controlled by the vehicle control unit.
Referring to fig. 1, a steering return pipe 16 is further provided between the rotary valve 13 and the oil tank 30, and the steering sub-system 10 can return oil into the oil tank 30 through the steering return pipe 16. Specifically, when the oil entering the valve port of the rotary valve 13 enters one of the first cylinder 142 and the second cylinder 143, the oil in the other cylinder is pressed to return to the rotary valve 13 and return to the oil tank 30 through the return steering pipe 16.
Referring to fig. 1 and 3, the braking subsystem 20 may include: brake pedal belt piston assembly 22 and brake caliper 23, wherein movable brake piston 223 is arranged in brake pedal belt piston assembly 22, specifically, brake pedal belt piston assembly 22 includes brake housing 226, the interior of brake housing 226 has a cavity, brake piston 223 is arranged in the interior cavity of brake housing 226, the outer diameter of brake piston 223 is equal to the inner diameter of brake housing 226, and brake pedal 224 is connected with brake piston 223 through brake lever 225. Brake piston 223 is adapted to move along the interior cavity of brake housing 226 upon depression of brake pedal 224. The side of the brake piston 223 facing away from the brake pedal 224 is provided with a brake spring 227, and after the braking force on the brake pedal 224 is removed, the brake spring 227 will push the brake piston 223 to return.
The brake housing 226 is provided with an oil inlet 221 and an oil outlet 222 suitable for being communicated with the cavity inside the brake housing 226, the brake oil path 21 is suitable for being connected to the oil inlet 221 of the brake pedal belt piston assembly 22, the oil outlet 222 of the brake pedal belt piston assembly 22 is connected with the brake caliper 23 through the brake oil path 24, oil in the oil tank 30 is suitable for reaching the oil inlet 221 of the brake pedal belt piston assembly 22 through the brake oil path 21 and entering the cavity inside the brake housing 226 through the oil inlet 221, and the oil in the cavity inside the brake housing 226 is suitable for entering the brake oil path 24 through the oil outlet 222 and further reaching the brake caliper 23 through the brake oil path 24, so that the brake caliper 23 brakes a wheel.
When the brake piston 223 moves, the oil inlet hole 221 or the oil outlet hole 222 can be selectively blocked, when the brake piston 223 blocks the oil inlet hole 221, oil cannot be fed into the oil inlet hole 221, and when the brake piston 223 blocks the oil outlet hole 222, oil cannot be discharged from the oil outlet hole 222.
Alternatively, when the brake piston 223 can selectively block the oil inlet hole 221, a brake solenoid valve is provided on the brake oil path 24. When the brake electromagnetic valve is in an open state, the brake oil path 24 is a passage, and oil in the cavity inside the brake shell 226 can reach the brake caliper 23 through the oil outlet hole 222 and the brake oil path 24; when the brake solenoid valve is closed, the brake oil passage 24 is opened, and the oil in the cavity inside the brake housing 226 cannot reach the brake caliper 23 through the brake oil passage 24.
Specifically, referring to fig. 1, brake caliper 23 may include: the first and second calipers 231 and 232, the brake oil path 24 may include: the brake first oil path 241 and the brake second oil path 242, the oil outlet hole 222 of the brake pedal belt piston assembly 22 is connected with the first brake caliper 231 through the brake first oil path 241, the oil outlet hole 222 of the brake pedal belt piston assembly 22 is connected with the second brake caliper 232 through the brake second oil path 242, the brake subsystem 20 does not need a vacuum booster and a brake fluid pot, oil can be introduced into the brake caliper 23 through the brake pedal belt piston assembly 22, the brake oil path 21 and the brake oil path 24, the braking function is achieved, and therefore the weight of the brake subsystem 20 can be reduced.
In some alternative embodiments, first caliper 231 is a front wheel caliper and second caliper 232 is a rear wheel caliper.
In other alternative embodiments, first caliper 231 is a left wheel caliper and second caliper 232 is a right wheel caliper.
The braking solenoid valve may include: a first brake solenoid valve 251 provided on the brake first oil passage 241, and a second brake solenoid valve 252 provided on the brake second oil passage 242. When the first brake solenoid valve 251 is in an open state, the brake first oil passage 241 is a passage, and oil in the cavity inside the brake housing 226 can reach the first brake caliper 231 through the brake first oil passage 241; when the first brake solenoid valve 251 is in the closed state, the brake first oil passage 241 is opened, and the oil in the internal cavity of the brake housing 226 cannot reach the first caliper 231 through the brake first oil passage 241. Similarly, when the second brake solenoid valve 252 is in an open state, the brake second oil passage 242 is a passage, and oil in the cavity inside the brake housing 226 can reach the second brake caliper 232 through the brake second oil passage 242; when the second brake solenoid valve 252 is in the closed state, the brake second oil passage 242 is opened, and the oil in the internal cavity of the brake housing 226 cannot reach the second caliper 232 through the brake second oil passage 242.
Alternatively, the opening or closing of the first and second brake solenoid valves 251 and 252 may be controlled by the vehicle controller.
Referring to fig. 1, a brake oil return pipe 26 is further provided between the brake oil passage 24 and the oil tank 30. The brake subsystem 20 may return oil to the oil tank 30 through the brake return pipe 26.
Further, referring to fig. 1, a third brake solenoid valve 27 is provided on the brake return pipe 26. When the third brake solenoid valve 27 is in an open state, the brake oil return pipe 26 is a passage, and the oil in the brake subsystem 20 can reach the oil tank 30 through the brake oil return pipe 26; when the third brake solenoid valve 27 is in the closed state, the brake return pipe 26 is open, and the oil in the brake subsystem 20 cannot reach the oil tank 30 through the brake return pipe 26. Alternatively, the opening or closing of the third brake solenoid valve 27 may be controlled by the vehicle control unit.
Referring to fig. 1, the steering brake system 100 may further include: anti-lock subsystem still is provided with anti-lock oil return pipe 41 between anti-lock subsystem and oil tank 30, is provided with the ABS solenoid valve on anti-lock oil return pipe 41, and anti-lock subsystem is suitable for realizing the pressure release through anti-lock oil return pipe 41 and ABS solenoid valve.
Specifically, the anti-lock oil return pipe 41 may include: the anti-lock main oil return pipe is connected with the oil tank 30, the anti-lock first oil return branch pipe and the anti-lock second oil return branch pipe are connected with the anti-lock main oil return pipe, and the ABS electromagnetic valves comprise an ABS first electromagnetic valve 421 arranged on the anti-lock first oil return branch pipe and an ABS second electromagnetic valve 422 arranged on the anti-lock second oil return branch pipe.
When the ABS first electromagnetic valve 421 is in an open state, the ABS first oil return branch pipe is a passage, and pressure relief can be realized through the ABS first oil return branch pipe and the ABS main oil return pipe; when the ABS second solenoid valve 422 is in an open state, the ABS second oil return branch pipe is a passage, and pressure relief can be achieved through the ABS second oil return branch pipe and the ABS main oil return pipe.
Alternatively, the ABS first solenoid valve 421 and the ABS second solenoid valve 422 may be opened or closed by the vehicle controller.
The operation of the steering brake system 100 according to the embodiment of the present invention will be described in detail.
When the vehicle 1000 runs, the oil pump 50 works, the oil tank 30 stores hydraulic oil, the hydraulic oil enters the oil pump 50 to be pressurized into high-pressure oil, the high-pressure hydraulic oil is divided into two paths, one path of the high-pressure hydraulic oil enters the rotary valve 13 in the steering column 12, the rotary valve 13 is driven by the steering wheel to rotate, namely, when the steering wheel is rotated, the rotary valve 13 rotates, the hydraulic oil from the oil pump 50 is controlled by the rotary valve 13 to enter the first cylinder 142 of the steering gear 14, the hydraulic oil pushes the steering gear piston 146 to move, the hydraulic oil in the second cylinder 143 is pressed to the rotary valve 13 and returns to the oil tank 30 through the valve port of the rotary valve 13 and the steering oil return pipe 16, and one-time steering is completed. When the steering wheel is turned in the reverse direction, the rotary valve 13 controls high-pressure oil to enter the second cylinder 143 of the steering gear 14, and the hydraulic oil pushes the steering gear piston 146 to move in the reverse direction, so that the steering of the vehicle 1000 is completed. When the vehicle 1000 needs to realize a game function in situ, the vehicle controller controls the steering gear electromagnetic valve 147 on the steering gear piston 146 to be changed from a normally closed state to an open state, the first cylinder 142 and the second cylinder 143 are in a communicated state, the steering gear piston 146 does not move, namely the vehicle 1000 does not steer, the decoupling of the steering wheel and the wheels is realized, and tires cannot be worn even if the steering wheel is rotated in the game process.
The other path of the high-pressure hydraulic oil in the oil pump 50 flows to the brake pedal belt piston assembly 22, when the brake pedal 224 is not stepped on, the brake piston 223 in the brake pedal belt piston assembly 22 does not move, and at the moment, the brake piston 223 blocks the oil inlet 221; when the brake pedal 224 is stepped on, the brake piston 223 moves to block the oil inlet hole 221, hydraulic oil enters the brake pedal belt piston assembly 22 from the oil inlet hole 221, then flows out from the oil outlet hole 222 and enters the brake oil path 24, the vehicle controller controls the opening degrees of the first brake electromagnetic valve 251 and the second brake electromagnetic valve 252, the ABS first electromagnetic valve 421 and the ABS second electromagnetic valve 422 are normally closed, hydraulic oil enters the first brake caliper 231 and the second brake caliper 232 through the first brake electromagnetic valve 251 and the second brake electromagnetic valve 252, at the moment, the ABS first electromagnetic valve 421 and the ABS second electromagnetic valve 422 are normally closed, and the brake wheel cylinder builds pressure, so that the braking function of the vehicle 1000 is realized.
If the vehicle 1000 needs pressure maintaining, the vehicle controller sends a signal to control the first brake solenoid valve 251 and the second brake solenoid valve 252 to be closed, and at the time, the ABS first solenoid valve 421 and the ABS second solenoid valve 422 are in a normally closed state, so that pressure maintaining of the brake is realized.
When the brake pedal 224 is released, the brake piston 223 blocks the oil inlet 221 on the brake pedal belt piston assembly 22, hydraulic oil is no longer fed into the brake housing 226, and meanwhile, the vehicle controller recognizes that the brake needs to be depressurized at this time, the first brake solenoid valve 251, the second brake solenoid valve 252 and the third brake solenoid valve 27 are controlled to be opened, the ABS first solenoid valve 421 and the ABS second solenoid valve 422 are normally closed, and at this time, the hydraulic oil in the brake caliper 23 returns to the oil tank 30 through the brake oil return pipe 26 through the first brake solenoid valve 251, the second brake solenoid valve 252 and the third brake solenoid valve 27, so that depressurization is completed.
When an anti-lock subsystem (namely ABS) works, the vehicle control unit recognizes that a certain wheel is locked, the ABS is required to be decompressed, the vehicle control unit controls the first brake electromagnetic valve 251, the second brake electromagnetic valve 252 and the third brake electromagnetic valve 27 to be closed, the ABS first electromagnetic valve 421 and the ABS second electromagnetic valve 422 are opened, hydraulic oil returns to the oil tank 30 through the anti-lock oil return pipe 41, and decompression of the ABS is achieved.
When the brake pedal 224 is released and the ABS is depressurized, the brake pedal 224 is released, the brake piston 223 blocks the oil inlet 221 on the brake pedal belt piston assembly 22, hydraulic oil is not fed into the brake housing 226, and the vehicle controller recognizes that the ABS needs to be depressurized, and controls the first brake solenoid valve 251, the second brake solenoid valve 252 and the third brake solenoid valve 27 to be opened, and simultaneously opens the first ABS solenoid valve 421 and the second ABS solenoid valve 422, and the hydraulic oil returns to the oil tank 30 through the brake oil return pipe 26 and the anti-lock oil return pipe 41, thereby achieving the functions of releasing the brake pedal 224 and depressurizing the ABS.
Referring to fig. 4, a vehicle 1000 according to another aspect of the embodiment of the present invention includes the steering brake system 100 of the above embodiment.
According to the vehicle 1000 provided by the embodiment of the invention, the steering brake system 100 of the embodiment is arranged, and as the integration degree of the steering brake system 100 is higher, a spare space can be reserved for arrangement of other parts of the vehicle 1000, and meanwhile, the number of parts of the steering brake system 100 is less, so that the strong quantitative design of the vehicle 1000 can be realized, the coupling and decoupling of a steering wheel and wheels can be realized, and the vehicle using experience of a user can be improved.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example" or "some examples" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples described in this specification can be combined and combined by those skilled in the art.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (11)
1. A steering brake system for a vehicle, characterized by comprising:
turn to subsystem (10), turn to subsystem (10) and realize the intercommunication with oil tank (30) through turning to oil circuit (11), turn to subsystem (10) and include: a steering column (12), the steering column (12) being adapted to be connected with a steering wheel, and the steering wheel being adapted to be coupled or decoupled with wheels of the vehicle by the steering sub-system (10);
and the braking subsystem (20), and the braking subsystem (20) is communicated with the oil tank (30) through a braking oil way (21).
2. The steering brake system as claimed in claim 1, wherein the steering subsystem (10) further comprises:
the rotary valve (13) is arranged on the steering column (12) and is suitable for rotating along with the steering column (12), the steering oil way (11) is suitable for being connected to the rotary valve (13), and the steering oil way (11) is communicated with an oil inlet valve port of the rotary valve (13); and
a diverter (14), the diverter (14) comprising: the steering gear comprises a steering gear shell (141) and a steering gear piston (146) arranged in the steering gear shell (141), the steering gear piston (146) divides the steering gear shell (141) into a first cylinder (142) and a second cylinder (143), an oil outlet valve port of the rotary valve (13) is selectively communicated with the first cylinder (142) or the second cylinder (143) to push the steering gear piston (146) to move, and the steering gear piston (146) is suitable for being connected with a wheel.
3. Steering brake system according to claim 2, characterized in that a first push rod (144) is arranged in the first cylinder (142), that the end of the first push rod (144) extending out of the steering gear housing (141) is configured as a first wheel connection end (1441), that a second push rod (145) is arranged in the second cylinder (143), that the end of the second push rod (145) extending out of the steering gear housing (141) is configured as a second wheel connection end (1451), and that the end of the first push rod (144) extending into the steering gear housing (141) and the end of the second push rod (145) extending into the steering gear housing (141) are both connected to the steering gear piston (146).
4. The steering brake system according to claim 2, characterized in that a steering solenoid valve (147) is provided on the steering piston (146), the steering solenoid valve (147) selectively communicating the first cylinder (142) and the second cylinder (143), the steering wheel being decoupled from the wheels when the first cylinder (142) and the second cylinder (143) are communicated;
the steering wheel is coupled with the wheel when the first cylinder (142) and the second cylinder (143) are disconnected from communication.
5. The steering brake system according to claim 2, wherein a steering return pipe (16) is further disposed between the rotary valve (13) and the oil tank (30), and when an oil outlet port of the rotary valve (13) communicates with one of the first cylinder (142) or the second cylinder (143), oil in the other cylinder is pressed to return to the rotary valve (13) and returns to the oil tank (30) through the steering return pipe (16).
6. The steering brake system as recited in claim 1, wherein the braking subsystem (20) includes: the brake pedal belt assembly comprises a brake pedal belt piston assembly (22) and a brake caliper (23), the brake oil path (21) is suitable for being connected to an oil inlet hole (221) of the brake pedal belt piston assembly (22), an oil outlet hole (222) of the brake pedal belt piston assembly (22) is connected with the brake caliper (23) through a brake oil path (24), a movable brake piston (223) is arranged in the brake pedal belt piston assembly (22), the brake piston (223) can selectively shield the oil inlet hole (221) or the oil outlet hole (222), and a brake electromagnetic valve is arranged on the brake oil path (24).
7. Steering brake system according to claim 6, characterized in that the brake caliper (23) comprises: a first caliper (231) and a second caliper (232), the brake oil passage (24) including: a brake first oil passage (241) and a brake second oil passage (242), the oil outlet hole (222) of the brake pedal belt piston assembly (22) being connected to the first caliper (231) through the brake first oil passage (241), the oil outlet hole (222) of the brake pedal belt piston assembly (22) being connected to the second caliper (232) through the brake second oil passage (242), the brake solenoid valve including: a first brake solenoid valve (251) provided on the brake first oil passage (241), and a second brake solenoid valve (252) provided on the brake second oil passage (242).
8. The steering brake system according to claim 6, characterized in that a brake return pipe (26) is further provided between the brake oil passage (24) and the oil tank (30).
9. Steering brake system according to claim 8, characterized in that a third brake solenoid valve (27) is arranged on the brake return line (26).
10. The steering brake system according to any one of claims 6 to 9, characterized by further comprising: anti-lock subsystem, anti-lock subsystem with still be provided with anti-lock oil return pipe (41) between oil tank (30), be provided with the ABS solenoid valve on anti-lock oil return pipe (41), anti-lock subsystem is suitable for through anti-lock oil return pipe (41) with the pressure release is realized to the ABS solenoid valve.
11. A vehicle characterized by comprising a steering brake system according to any one of claims 1-10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011612422.6A CN114684256B (en) | 2020-12-30 | 2020-12-30 | Steering braking system and vehicle with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011612422.6A CN114684256B (en) | 2020-12-30 | 2020-12-30 | Steering braking system and vehicle with same |
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| CN114684256A true CN114684256A (en) | 2022-07-01 |
| CN114684256B CN114684256B (en) | 2023-07-11 |
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| CN202011612422.6A Active CN114684256B (en) | 2020-12-30 | 2020-12-30 | Steering braking system and vehicle with same |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115092248A (en) * | 2022-07-29 | 2022-09-23 | 中国重汽集团济南动力有限公司 | Variable-frequency adjusting system and method for braking and steering shared oil pump |
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| CN115092248A (en) * | 2022-07-29 | 2022-09-23 | 中国重汽集团济南动力有限公司 | Variable-frequency adjusting system and method for braking and steering shared oil pump |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN114684256B (en) | 2023-07-11 |
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