42results about How to "Apply the parking brake" patented technology

The invention relates to an electronic machinery wire control brake which comprises a motor, a transmission mechanism, a screw rod with a wedge-shaped adjusting mechanism, a nut, a piston, a friction limiting device and the like. The screw rod is matched with the nut; a motor drives a screw rod nut component to rotate through a transmission mechanism; a piston and a brake caliper body are driven to move oppositely through a screw rod nut transmission pair; a friction plate is compressed with the same force and from the two sides of a brake disc to realize an efficient brake effect. The electronic machinery wire control brake provided by the invention has the advantages of simple structure, reliable work and high brake efficiency, and can automatically adjust the brake clearance and compensate for the influence caused by the wear of the friction plate; the design of the control system is simplified, and the electronic machinery wire control brake can be applied to service brake and parking brake.

The invention relates to an electric-traction rack rail railcar. By successfully developing the electric-traction rack rail railcar, the contradiction between the rapid development of coal mining, shoring and heading equipment and underdeveloped underground coal mine subsidiary transportation equipment in China is alleviated, and the updating and upgrading of coal mine equipment in China are maximally promoted. The electric-traction rack rail railcar comprises rails and standers, wherein a cab, an anti-explosion diesel generator, an anti-explosion variable frequency motor, a three-stage gear reducer, an electric control tank, and a guiding and anti-rollover steering frame are arranged on the standers. The electric-traction rack rail railcar has the beneficial effects that the whole vehicle is electrically and mechanically driven and is powered by the vehicle-mounted anti-explosion diesel generator, and a low-speed large-torque driving manner can be realized by virtue of the anti-explosion variable frequency motor and the three-stage gear reducer; by utilizing the anti-explosion variable frequency motor, the emergency braking, the driving braking, parking braking and the like of the railcar are realized by virtue of the coordinate operation of a variable-frequency governor and a braking system; the guiding and anti-rollover steering frame with a guiding wheel can play guiding and anti-rollover roles; the electric-traction rack rail railcar is environment-friendly, safe and efficient and has an automatic function.

The invention relates to a vehicle gap adjustable conical brake device. The vehicle gap adjustable conical brake device comprises a barrel. The barrel is provided with a first end port and a second end port. A parking end cover is arranged in the first end port. A running end cover is arranged in the second end port. The parking end cover, the running end cover and the barrel define a cavity. A parking piston and a running piston are arranged in the cavity. One end of the parking piston can abut against the parking end cover, and the other end of the parking piston can abut against the running piston. The running piston can abut against the running end cover. A set of spring positioning grooves extending axially are evenly distributed in the parking piston. Parking springs are arranged in the spring positioning grooves and tightly abut against the parking end cover. The running piston is hollow, and a transmission shaft which is in sliding fit with the running piston is arranged in the hollow interior of the running piston. The vehicle gap adjustable conical brake device has the advantages that large brake torque can be achieved in a small mounting space, the brake effect is better, by adopting the nesting integral design of running and parking brakes, a parking brake does not need to be arranged independently, a vehicle frame space is saved, and great convenience is provided for overall vehicle arrangement.

The invention discloses a wet brake drive axle. The wet brake drive axle comprises a main speed reducer assembly, an axle shell assembly, a wet brake positioned in the axle shell assembly, a rim speed reducer assembly and a half shaft, wherein the two ends of the half shaft are respectively connected with the main speed reducer assembly and the rim speed reducer assembly; and when the wet brake is in a brake working state, the half shaft is braked. The wet brake drive axle, provided by the invention, adopts the braking of the half shaft to realize the braking operation; and when the braking operation is performed, a piston pushes a friction pair to perform the pressing and the bonding so as to reliably realize the braking of the half shaft. The wet brake drive axle brakes the half shaft with smaller torque, is small in volume, light in load, low in inertia, simple in structure, large in lubricating oil cavity and excellent in cooling effect, largely reduces the braking heat, and thus effectively improves the working stability and the braking stability of a whole machine.

The invention relates to an electronic mechanical drive-by-wire brake. The electronic mechanical drive-by-wire brake comprises a motor, a transmission mechanism, a one-way clutch, a gear, a rack, a piston, a friction limiting device and the like. The one-way clutch is driven to rotate by the motor through the transmission mechanism, and the gear is driven to rotate by the one-way clutch; the piston and a caliper body are driven to move in the opposite direction by a gear and rack mechanism, and friction plates are tightly pressed by same forces from both sides of a brake disc, so that the efficient braking effect is achieved. The electronic mechanical drive-by-wire brake is simple in structure, reliable in operation, high in braking efficiency, braking clearance can be adjusted automatically, influence caused by abrasion of the friction plates can be compensated, design for a controlling system is simplified, and the electronic mechanical drive-by-wire brake can be used for the service braking and parking brake.

The invention discloses a motor coach running safety auxiliary system and a control method of the motor coach running safety auxiliary system. The motor coach running safety auxiliary system comprises an air compressor, a wet gas reservoir, a front brake chamber, a rear brake chamber, a front main gas reservoir, a rear main gas reservoir, a double-cavity brake valve upper cavity, a double-cavity brake valve lower cavity, each spring brake chamber, an ABS electronic control unit and an ABS pressure regulator. The motor coach running safety auxiliary system is characterized in that in the safety auxiliary system, a first electromagnetic gas channel directional valve is arranged in the brake gas channel positioned between the front brake chamber and the front main gas reservoir, a second electromagnetic gas channel directional valve is arranged in the brake gas channel positioned between the rear front brake chamber and the rear main gas reservoir, and electromagnetic quick-release valves are arranged in the spring brake chambers in a one-to-one correspondence manner. By applying the motor coach running safety auxiliary system and the control method of the motor coach running safety auxiliary system, a motor coach is controlled to be braked and stopped running at a reasonable deceleration in case of paroxysmal diseases of the driver, parking braking is started, and the running safety is guaranteed.

The invention relates to an electronic mechanical hydraulic wire control brake. The electronic mechanical hydraulic wire control brake comprises a motor, a transmission mechanism, a threaded mechanism, a large piston, a small piston, a hydraulic system and the like; the motor drives the threaded mechanism through the transmission mechanism, the hydraulic system is driven by the threaded mechanism,the large piston and a brake caliper body are driven to move in opposite directions through the hydraulic system, a friction plate is pressed by the same force from the two sides of a brake disc, andthe influence of hydraulic system failure and long-time continuous braking work can be avoided. The brake is simple in structure, reliable in work and high in braking efficiency, the braking clearance can be automatically adjusted, the influence caused by abrasion of the friction plate is compensated, the design of a control system is simplified, and the brake can be used for driving braking andparking braking.

The invention relates to an electronic mechanical drive-by-wire brake. The electronic mechanical drive-by-wire brake comprises a motor, a transmission mechanism, a one-way clutch, a screw, a piston, a friction limiting device and the like. The motor drives the one-way clutch to rotate through the transmission mechanism, the one-way clutch is combined to drive the screw to rotate, the threaded transmission mechanism separately drives the piston and a brake caliper body to move in reverse directions, and a friction plate is pressed with same force from the two sides of a brake disc, so that the efficient brake effect is realized. The electronic mechanical drive-by-wire brake is simple in structure, is reliable in work, is high in braking efficiency, can automatically regulate a brake gap, compensates influences caused by friction plate abrasion, simplifies design of a control system, and can be used for travelling brake and parking brake.

The invention provides a parking system and a vehicle. The parking system includes a brake pedal, a brake pedal locking piece and a parking brake control piece, wherein the brake pedal locking piece is provided with a locking position and an unlocking position, and the parking brake control piece is connected with the brake pedal locking piece and arranged to be used for controlling the brake pedal locking piece to be switched between the locking position and the unlocking position. By arranging the brake pedal locking piece and connecting the brake pedal locking piece with the parking brake control piece, the parking brake control piece locks the brake pedal in the state of braking through the brake pedal locking piece, and therefore the vehicle can achieve parking brake; the parking system has the advantages of being simple in structure and reliable.

The invention relates to an electro-mechanical hydraulic line control brake which comprises a motor, a transmission mechanism, a gear, racks, a piston, a hydraulic system and other parts. The motor drives the gear to rotate through the transmission mechanism; a rack and pinion mechanism and the hydraulic system respectively drive the piston and a brake caliper body to move in opposite directions,and friction plates are pressed from two sides of a brake disc with the same force, thereby avoiding hydraulic system failure and possible effects caused by prolonged braking operation. The electro-mechanical hydraulic line control brake provided by the invention is simple in structure, reliable to work and high in braking efficiency, is capable of automatically adjusting the brake clearance, compensating for the influence caused by wear of the friction plates and simplifying the design of a control system, and can be used for service braking and parking braking.

The invention relates to an electric traction rack rail car. The successful development of the car alleviates the contradiction between the rapid development of coal mining, support and excavation equipment in my country and the backward auxiliary transportation equipment in coal mines. It has promoted the upgrading of my country's coal mine equipment to the greatest extent. The present invention includes a track and a frame. The frame is equipped with a cockpit, an explosion-proof diesel generator, an explosion-proof variable-frequency motor, a three-stage gear reducer, an electric control box, a guiding anti-rollover steering frame, etc. The whole locomotive adopts electric-mechanical transmission. , driven by a vehicle-mounted explosion-proof diesel generator, through an explosion-proof variable-frequency motor and three-stage gear reduction, it can realize low-speed high-torque drive; it uses an explosion-proof variable-frequency motor, and through the coordinated use of variable-frequency speed regulation and braking systems, it can realize emergency braking and braking of locomotives. Driving brake, parking brake, etc.; the guiding and anti-rollover steering frame with guide wheels can play the role of guiding and anti-rollover; the electric traction rack rail car of the present invention is a green, safe, efficient, and automatic function A new type of mining transport vehicle integrated.

The invention relates to an electromechanical brake by wire. The electromechanical brake by wire comprises a motor, a transmission mechanism, a one-way clutch, a threaded rod, a nut, a piston, a friction limiting device and the like. The motor drives the one-way clutch to rotate through the transmission mechanism, the one-way clutch drives the nut to rotate in a combined mode, the piston and a brake caliper body are driven to move in the opposite directions through a thread transmission mechanism, friction plates are compressed with identical force from both sides of a brake disc, and an efficient braking effect is achieved. According to the electromechanical brake by wire, the structure is simple, work is reliable, the braking efficiency is high, brake clearance can be automatically adjusted, the influence caused by abrasion of the friction plates is compensated for, the design of a control system is simplified, and the electromechanical brake by wire can be used for service braking and parking braking.

The invention relates to a disc type traveling and parking integrated brake axle. The brake axle comprises two axles, wheels rotationally arranged at the two ends of the axles, a longitudinal beam connected with the two axles, and a mounting base arranged on the longitudinal beam. A brake disc is arranged on a rim of each wheel, a brake caliper is arranged on each brake disc, and brake calipers are fixedly mounted on the axles through mounting plates; each brake caliper is connected with a pneumatic control system through a parking hydraulic braking pipeline and a service hydraulic braking pipeline, and service braking or parking braking of the brake calipers is controlled by the pneumatic control system. The braking structure is designed to be a disc type braking structure, the brake calipers are respectively braked by the parking hydraulic brake pipelines and the service hydraulic brake pipelines, the parking brake control system and the service brake control system are designed to respectively provide brake power for the parking hydraulic brake pipelines and the service hydraulic brake pipelines, and a pneumatic and hydraulic brake combined mode is adopted, so that the brake isreliable.

The invention discloses a foot parking braking and unlocking mechanism which consists of a braking assembly, a ratchet wheel piece, a connecting piece, a pawl and a pedal assembly, wherein the ratchet wheel piece is mounted on the braking assembly through a main shaft; the upper edge of the ratchet wheel piece is connected with the transmission rod of the braking assembly; an arc-shaped groove is formed below the ratchet wheel piece; a track is arranged below the ratchet wheel piece; a guide column which is mounted on the braking assembly is inserted into the arc-shaped groove; a return spring is arranged between the guide column and the ratchet wheel piece; the upper side and the lower side of the track respectively incline upwards and downwards from front to back; the front ends of the upper side and the lower side of the track are connected in a crossing manner; the rear ends of the upper side and the lower side of the track are connected through a folded side; positioning concave points are arranged at the rear ends; a ratchet wheel is arranged on the lower edge of the ratchet wheel; one end of each of the connecting piece and the pawl is pivoted on the braking assembly; another return spring is arranged between the connecting piece and the pawl; a guide pin matched with the track is arranged at the other end of the connecting piece; the other end of the pawl is matched with the ratchet wheel; another return spring is arranged between the other end of the pawl and the guide column; the upper end of the pedal assembly is fixed with the ratchet wheel piece. According to the foot parking braking and unlocking mechanism, the structure is simple, and foot parking unlocking can be conveniently achieved.

The invention provides a motor-driven vehicle brake power driving device. The motor-driven vehicle brake power driving device comprises a shell, a motor installed in the shell, a transmission mechanism driven by the motor, and a self-locking mechanism installed on brakes and used for realizing driving force required by vehicle running braking and parking braking brakes for realizing correspondingactions. According to the motor-driven vehicle brake power driving device, different from a traditional hydraulic drive brake, the power driving mechanism is driven through the motor, moreover, the torque required by the brakes is output, and the vehicle running braking and parking braking functions are realize; and the structure of the brake power driving mechanism is optimized, so that the structure cost and the process cost are reduced, and the motor-driven vehicle brake power driving device has a wide application prospect.

The invention relates to a floating clamp disc drive-by-wire brake comprising a motor, a transmission mechanism, a one-way clutch, a bi-directional nut, a left-handed screw, a right-handled screw, a piston, a friction limiting device and the like. The motor drives the outer circle of the one-way clutch to rotate through the transmission mechanism, the one-way clutch drives the bi-directional nut to rotate, and through a bi-directional thread mechanism, the piston and a braking clamp body are driven to move in the opposite directions correspondingly. A friction piece is tightly pressed from the two sides of a braking disc through the same force, and thus the efficient braking effect is achieved. According to the floating clamp disc drive-by-wire brake, the structure is simple, work is reliable, the braking efficiency is high, the braking gap can be automatically adjusted, the influence caused by friction piece abrasion is compensated, the design of a control system is simplified, and the floating clamp disc drive-by-wire brake can be used for travelling braking and parking braking.

The invention discloses a parking system with a handbrake direction control mechanism, so that it belong to that technical field of automobile control, the invention solves the problem that careless drivers or novice drivers are easy to get off without pulling up the brake lever, The main points of the technical scheme are as follows: includes a transverse mounting plate located between two handles of a small tricycle logistics vehicle, a hand brake plate hinged to a lateral mounting plate close to a side surface of the driver's seat and rotatable in a horizontal direction, a hand brake cableconnected to a brake of a small tricycle logistics vehicle, and an auxiliary hand brake cable connected to the hand brake cable at one end and to the hand brake plate at the other end and controlled by the hand brake plate and pulling the hand brake cable; A loc assembly for locking that handbrake plate is instal on both sides of the transverse mounting plate. The parking system of the invention with the direction control mechanism of the handbrake has a front end of the hand brake plate installed on the drive for prompting the driver to park the brake.

The invention relates to an electronic mechanical drive-by-wire brake. The electronic mechanical drive-by-wire brake comprises a motor, a transmission mechanism, a one-way clutch, a gear, a rack, a piston, a friction limiting device and the like. The one-way clutch is driven to rotate by the motor through the transmission mechanism, and the gear is driven to rotate by the one-way clutch; the piston and a caliper body are driven to move in the opposite direction by a gear and rack mechanism, and friction plates are tightly pressed by same forces from both sides of a brake disc, so that the efficient braking effect is achieved. The electronic mechanical drive-by-wire brake is simple in structure, reliable in operation, high in braking efficiency, braking clearance can be adjusted automatically, influence caused by abrasion of the friction plates can be compensated, design for a controlling system is simplified, and the electronic mechanical drive-by-wire brake can be used for the service braking and parking brake.

A disc hydraulic anti-lock brake and a brake system are provided. The disc hydraulic anti-lock brake includes a support (400) provided with a first opening (415), a core tube (502), a first passage (406), a second passage (412), a third passage (409) and a braking sheet base; a first piston (501) disposed in the first opening (415), with a first cavity being communicated with the first passage (406) and a service brake valve, and the first piston (501) being provided with a second opening (504); a second piston (506) disposed in the second opening (504), with a second cavity (508) being communicated with the core tube (502), the second passage (412) and a parking brake valve; an elastic member (505) disposed between the second piston (506) and the bottom of the second opening (504); a braking terminating system provided with a pump (315) and an unloading valve (322); a braking disc (900) provided with a counting gear ring and a mounting portion; and an anti-lock system provided with acounting sensor, a motor (309), and a liquid drainage valve (310). A liquid inlet of the liquid drainage valve (310) is communicated with the first cavity through the third passage (409). According tothe brake, the support (400) is provided with the first opening (416) and the second opening (417), and the first piston (601) and the second piston (701) are disposed in the first opening (416) andthe second opening (417) respectively. The brake system can achieve service braking, parking braking and anti-lock braking, and is easy to achieve.

The invention discloses a parking control system and method and a vehicle. The parking control system comprises a parking execution mechanism, a parking control unit and an automatic parking unit, and the parking control unit comprises an abnormal driving state output end; one end of the automatic parking unit is connected with the abnormal driving state output end, the other end of the automatic parking unit is connected with the parking executing mechanism, and when the automatic parking unit detects that the abnormal driving state output end is in a first preset potential state, the parking executing mechanism is controlled to execute a parking clamping action; wherein the first preset potential state represents that the parking control unit breaks down. The problems that under the condition that a parking control circuit breaks down, a scheme for achieving parking braking is large in redundancy and high in cost can be effectively solved.

A zero-turn electric lawn mower, including: universal front wheel assembly A, emergency brake parking brake assembly B, integral welded frame assembly C, central mowing disc and height adjustment assembly D , cover and console assembly E, driving control assembly F, seat assembly G, wheel side deceleration drive wheel assembly H and energy system assembly I, the middle mowing disc and height adjustment assembly D It is composed of the mowing disc height adjustment assembly and the middle mowing disc assembly; the mowing disc height adjustment assembly includes the lifting joystick assembly, the lifting device rocker, the lifting connection weldment, the J-shaped side connecting shaft, the rear Transition connecting plate, J-shaped front shaft assembly, rotating shaft and bush seat; middle mowing disc assembly includes mowing disc casters, cutters, mowing disc front connecting plate, mowing disc, mowing disc rear connection panels and side row grass covers. By optimizing the design of the composition and structure of the lawnmower, it can meet the needs of horticultural lawn pruning management in complex environments.

The invention relates to the field of engineering machinery, in particular to a composite braking system. The composite braking system comprises a seat, wherein the seat is fixedly connected with a gearbox main body; an end of a transmission shaft extends out of a shell of the gearbox main body and is fixedly connected with an output flange; the transmission shaft is connected with the outer end of the output flange in a fastened manner through a connecting bolt; the inner end of the output flange is in sleeve connection to the outer side wall of the transmission shaft; a main cavity is formedbetween the shell of the gearbox main body and the transmission shaft; the transmission shaft in the main cavity is fixedly connected with a bidirectional piston; an oil cylinder body of which the rear section inner side wall is matched with the outer side wall of the bidirectional piston is arranged in the main cavity and positioned on the outer side of the bidirectional piston; the inner end ofthe oil cylinder body is fixedly connected with the gearbox main body; and a buffering auxiliary device is arranged between the seat and the bidirectional piston. The composite braking system is reasonable in structural design; on the basis of reduction of the manufacturing cost, vehicle emergency braking, parking braking, running braking and micro-motion functions are fulfilled; and when the composite braking system is used, the safety factor is high.

The invention discloses a zero-steering electric mower. The zero-steering electric mower comprises a universal front wheel assembly A, an emergency braking and parking braking assembly B, an integral welding frame assembly C, a middle mowing disc and height adjusting assembly D, a covering part and console assembly E, a running control assembly F, a seat assembly G, a hub speed reduction driving wheel assembly H and an energy system assembly I, wherein the middle mowing disc and height adjusting assembly D is composed of a mowing disc height adjusting assembly and a middle mowing disc assembly; the mowing disc height adjusting assembly comprises a lifting control rod assembly, a lifting device rocker arm, a lifting connection welding piece, a J-shaped side connecting shaft, a rear transition connecting plate, a J-shaped front shaft assembly, a rotating shaft and a lining seat; the middle mowing disc assembly comprises mowing disc trundles, a cutting knife, a mowing disc front connecting plate, a mowing disc, a mowing disc rear connecting plate and a side grass discharging cover. Through optimization design of the composition structure of the mower, the mower can meet the requirements of gardening lawn pruning and management operation in a complex environment.

The invention provides a friction-free fluid pressure braking method, and provides a friction-free automobile hydraulic braking method and device. The characteristics of liquid are utilized, and a control valve is adjusted to control the flow of the liquid, so that the liquid in a hydraulic cylinder in a braking device generates back pressure, and then a hub is braked. The brake is large in torque, quick in response, free of friction, and small in heat production, so that the safety of a braking system is greatly improved. When braking is not needed, the control valve does not work, the mediumliquid does not flow or freely flows, so that back pressure resistance is not generated; when a braking force needs to be generated, the control valve works and controls flowing of the liquid to enable the liquid cylinder in the braking device to generate back pressure and hinder the movement of the hub, so that braking is achieved, and the larger the back pressure is, the larger the braking force is; and when the control valve is closed, the liquid stops flowing, the liquid in the hydraulic cylinder in the braking device stops flowing, so that the hub is locked due to the fact that the compressibility of the liquid is small, and the braking force reaches the maximum.

The invention relates to a floating clamp disc drive-by-wire brake comprising a motor, a transmission mechanism, a one-way clutch, a bi-directional nut, a left-handed screw, a right-handled screw, a piston, a friction limiting device and the like. The motor drives the outer circle of the one-way clutch to rotate through the transmission mechanism, the one-way clutch drives the bi-directional nut to rotate, and through a bi-directional thread mechanism, the piston and a braking clamp body are driven to move in the opposite directions correspondingly. A friction piece is tightly pressed from the two sides of a braking disc through the same force, and thus the efficient braking effect is achieved. According to the floating clamp disc drive-by-wire brake, the structure is simple, work is reliable, the braking efficiency is high, the braking gap can be automatically adjusted, the influence caused by friction piece abrasion is compensated, the design of a control system is simplified, and the floating clamp disc drive-by-wire brake can be used for travelling braking and parking braking.

The invention relates to a P-gear control method of an electronic-control mechanical type automatic transmission of a pure electric vehicle, comprising the following steps of: a, detecting the position of a gear shift handle and vehicle speed; b, when the gear shift handle is positioned at the P gear and the vehicle speed is lower than a preset value, shifting to a neutral position; and c, locking the P gear. Preferably, in the step b, a synchronizer is driven to shift to the neutral position by rotating a shift motor and driving a transmission device to drive a shift fork; and in the step c, a P gear motor rotates and the transmission device drives a pawl to lock a ratchet wheel fixed with the input shaft of the transmission so as to lock the input shaft of the transmission and realize parking braking. The invention also provides a D gear control method and a correlative control system. The invention enhances the reliability and the stability of the parking braking of the electric vehicle, can also realize the automatic and stable gear shift of the transmission, reduce the gear shift impact, increase the dirigibility and riding comfortableness of the electric vehicle and sufficiently develop the efficiency of the motor, has ingenious and reasonable design and is suitable for large-scaled popularization and application.

The invention discloses a foot parking braking and unlocking mechanism which consists of a braking assembly, a ratchet wheel piece, a connecting piece, a pawl and a pedal assembly, wherein the ratchet wheel piece is mounted on the braking assembly through a main shaft; the upper edge of the ratchet wheel piece is connected with the transmission rod of the braking assembly; an arc-shaped groove is formed below the ratchet wheel piece; a track is arranged below the ratchet wheel piece; a guide column which is mounted on the braking assembly is inserted into the arc-shaped groove; a return spring is arranged between the guide column and the ratchet wheel piece; the upper side and the lower side of the track respectively incline upwards and downwards from front to back; the front ends of the upper side and the lower side of the track are connected in a crossing manner; the rear ends of the upper side and the lower side of the track are connected through a folded side; positioning concave points are arranged at the rear ends; a ratchet wheel is arranged on the lower edge of the ratchet wheel; one end of each of the connecting piece and the pawl is pivoted on the braking assembly; another return spring is arranged between the connecting piece and the pawl; a guide pin matched with the track is arranged at the other end of the connecting piece; the other end of the pawl is matched with the ratchet wheel; another return spring is arranged between the other end of the pawl and the guide column; the upper end of the pedal assembly is fixed with the ratchet wheel piece. According to the foot parking braking and unlocking mechanism, the structure is simple, and foot parking unlocking can be conveniently achieved.

The present disclosure relates to a parking control system and a vehicle. The parking control system includes a manual parking control mechanism (1), an electric parking control mechanism (2), a switching mechanism (3) and a locking mechanism. The switching The mechanism (3) is configured to be switchable between a first position and a second position, in which the switching mechanism (3) can establish a relationship between the manual parking control mechanism (1) and the brake transmission connection, in the second position, the switching mechanism (3) can establish a transmission connection between the electric parking mechanism and the brake, and the locking mechanism selectively locks the switching mechanism In said first position or said second position. Through the above technical solution, the parking control system provided by the present disclosure can have both the electronic parking function and the manual parking function, and can achieve parking braking more safely and reliably.

The invention relates to the technical field of automobile autonomous braking systems, in particular to an independent booster pump distributed autonomous braking system with a shaft pressure balance.The independent booster pump distributed autonomous braking system comprises a power source and a brake controller, and also comprises at least three plunger pumps which are separately and electrically connected to the brake controller, wherein all of the plunger pumps are equipped with oil cans; the plunger pumps are separately connected to wheel brakes through brake pipes in a one-to-one correspondence manner; a pressure relief pipe is arranged between each of the wheel brakes and the corresponding oil can; each of the pressure relief pipes is provided with a normally closed solenoid valve;the normally closed solenoid valves are separately and electrically connected to the brake controllers; each of the plunger pumps forms a brake circuit with the corresponding wheel brake and the corresponding normally closed solenoid valve; the two wheel brakes at two ends of a same shaft communicate with each other through a corresponding brake pipe; normally open solenoid valves are arranged onthe corresponding brake pipes; and the normally open solenoid valves are electrically connected to the brake controllers. The independent booster pump distributed autonomous braking system with the shaft pressure balance has the advantages of simple structure without the need for a manual braking device, high braking reliability, good failure protection ability, flexible brake force control and high control pressure accuracy.