CN111762140A - Brake clutch control device for vehicle - Google Patents

Brake clutch control device for vehicle Download PDF

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Publication number
CN111762140A
CN111762140A CN202010712121.4A CN202010712121A CN111762140A CN 111762140 A CN111762140 A CN 111762140A CN 202010712121 A CN202010712121 A CN 202010712121A CN 111762140 A CN111762140 A CN 111762140A
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China
Prior art keywords
clutch
brake
oil inlet
oil
communicated
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Pending
Application number
CN202010712121.4A
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Chinese (zh)
Inventor
刘剑
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Individual
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Individual
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Priority to CN202010712121.4A priority Critical patent/CN111762140A/en
Publication of CN111762140A publication Critical patent/CN111762140A/en
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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
    • B60T13/16—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 pumps directly, i.e. without interposition of accumulators or reservoirs
    • B60T13/161—Systems with master cylinder
    • B60T13/167—In combination with distributor valve
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K23/00—Arrangement or mounting of control devices for vehicle transmissions, or parts thereof, not otherwise provided for
    • B60K23/02—Arrangement or mounting of control devices for vehicle transmissions, or parts thereof, not otherwise provided for for main transmission clutches
    • 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
    • B60T13/16—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 pumps directly, i.e. without interposition of accumulators or reservoirs
    • B60T13/168—Arrangements for pressure supply
    • 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
    • B60T13/66—Electrical control in fluid-pressure brake systems
    • B60T13/68—Electrical control in fluid-pressure brake systems by electrically-controlled valves
    • B60T13/686—Electrical control in fluid-pressure brake systems by electrically-controlled valves in hydraulic systems or parts thereof
    • 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
    • B60T2260/00—Interaction of vehicle brake system with other systems

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  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)

Abstract

The utility model provides a brake separation and reunion controlling means of vehicle, includes first brake pedal, brake wheel cylinder, braking oil cup, first brake master cylinder, first clutch pedal, clutch wheel cylinder, clutch oil cup, first clutch master cylinder, hall sensor, first liquid accuse switching-over valve, second liquid accuse switching-over valve, solenoid valve, response piece, shuttle valve, main control unit, pressure sensor, second brake pedal, second brake master cylinder, second clutch pedal and second clutch master cylinder. The invention can realize that the pressure plate and the friction plate of the clutch can be automatically separated when the vehicle runs at low speed and brakes in the cab at the front end part and the cab at the rear end part.

Description

Brake clutch control device for vehicle
Technical Field
The present invention relates to a vehicle, and more particularly, to a brake clutch control device for a vehicle.
Background
The brake and clutch control device of the vehicle comprises a brake mechanism and a clutch mechanism, as shown in fig. 2, the brake mechanism comprises a first brake pedal 30, a wheel cylinder 31, a brake oil cup 32 and a first master cylinder 33, a piston rod of the first master cylinder 33 is hinged with the first brake pedal 30, an oil inlet of the first master cylinder 33 is communicated with the brake oil cup 32, an oil outlet of the first master cylinder 33 is communicated with a rodless cavity of the wheel cylinder 31, and a piston rod of the wheel cylinder 31 is connected with a brake. When the vehicle needs to be braked, only the first brake pedal 30 is needed to be pressed, pressure oil from an oil outlet of the first master cylinder 33 enters a rodless cavity of the wheel cylinder 31, and a piston rod of the wheel cylinder 31 drives the brake to work so as to brake the vehicle.
As shown in fig. 3, the clutch mechanism includes a first clutch pedal 40, a clutch slave cylinder 41, a clutch oil cup 42 and a first clutch master cylinder 43, a piston rod of the first clutch master cylinder 43 is hinged to the first clutch pedal 40, an oil inlet of the first clutch master cylinder 43 is communicated with the clutch oil cup 42, an oil outlet of the first clutch master cylinder 43 is communicated with a rodless cavity of the clutch slave cylinder 41, and a piston rod of the clutch slave cylinder 41 is connected with a release fork. When the driver steps on the first clutch pedal 40, the pressure oil from the oil outlet of the first clutch master cylinder 43 enters the rodless cavity of the clutch slave cylinder 41, the piston rod of the clutch slave cylinder 41 drives the release fork to move, the release bearing is pushed forward, the pressure plate of the clutch is separated from the friction plate, namely the clutch is in a release state, and the power of the engine cannot be transmitted to the gearbox. When the driver releases the first clutch pedal 40, the release fork gradually returns to the original position under the action of the return spring, the pressure plate is tightly pressed against the friction plate arranged on the flywheel of the engine, the pressure plate and the friction plate are in a combined state, namely the clutch is in a combined state, and the power of the engine can be transmitted to the gearbox.
When the vehicle runs at a medium-high speed of 35km/h or more and braking is required, the vehicle can be braked by only stepping on the first brake pedal 30 without stepping on the first clutch pedal 40. When the vehicle runs at a low speed of below 35km/h and needs braking, if a driver only steps on the first brake pedal 30 and forgets to step on the first clutch pedal 40 to brake the vehicle, the pressure plate and the friction plate of the clutch are still in a combined state, so that an engine is easy to shut down in the braking process, and when the vehicle is moved again, the engine needs to be started again, so that the inconvenience is brought to the driver, and meanwhile, the time for avoiding danger is missed at some time, and the method is very unsafe.
Some vehicles need to run in a roadway with a small section, turning around is very inconvenient when the vehicles run in the roadway, long-distance forward and backward driving is needed under the condition that the vehicles cannot turn around, and the vehicles need to have a bidirectional driving function in order to improve driving comfort and safety. A vehicle having a bidirectional driving function requires a cab to be provided at each of a front end portion and a rear end portion of the vehicle. The brake clutch control device of the vehicle in the prior art can only realize that the vehicle which is driven in one direction can automatically separate the pressure plate and the friction plate of the clutch when the vehicle is driven at low speed and braked, and the vehicle which cannot be driven in two directions can automatically separate the pressure plate and the friction plate of the clutch when the vehicle is driven at low speed and braked, namely, the prior art can not realize that the pressure plate and the friction plate of the clutch can be automatically separated when the vehicle is braked in a driving cab at the front end part and a driving cab at the rear end part when the vehicle is driven at low speed.
Disclosure of Invention
The invention aims to provide a vehicle brake and clutch control device which can automatically separate a pressure plate and a friction plate of a clutch when a vehicle runs at a low speed and brakes in a cab at the front end part and a cab at the rear end part.
In order to achieve the purpose, the invention adopts the following technical scheme: a brake clutch control device of a vehicle comprises a first brake pedal, a brake cylinder, a brake oil cup, a first brake master cylinder, a first clutch pedal, a clutch cylinder, a clutch oil cup and a first clutch master cylinder.
The hydraulic control system also comprises a Hall sensor, a first hydraulic control reversing valve, a second hydraulic control reversing valve, an electromagnetic valve, an induction part, a shuttle valve, a main controller, a pressure sensor, a second brake pedal, a second brake master cylinder, a second clutch pedal and a second clutch master cylinder; the oil inlet of the first brake master pump and the oil inlet of the second brake master pump are both communicated with the brake oil cup; an oil outlet of the first brake master pump is respectively communicated with a first oil inlet P1 of the first hydraulic control reversing valve, a control port K of the first hydraulic control reversing valve and a second oil inlet P2 of the second hydraulic control reversing valve; an execution port A of the first hydraulic control reversing valve is communicated with a rodless cavity of the brake cylinder; an oil outlet of the second master brake pump is communicated with a second oil inlet P2 of the first hydraulic control reversing valve, a control port K of the second hydraulic control reversing valve and a first oil inlet P1 of the second hydraulic control reversing valve respectively; an execution port A of the second hydraulic control reversing valve is communicated with a first oil inlet P1 of the electromagnetic valve; an oil inlet of the first clutch master cylinder and an oil inlet of the second clutch master cylinder are communicated with the clutch oil cup, an oil outlet of the first clutch master cylinder is communicated with a first oil inlet A of the shuttle valve, an oil outlet of the second clutch master cylinder is communicated with a second oil inlet C of the shuttle valve, an oil outlet B of the shuttle valve is respectively communicated with a control port K of the pressure sensor and a second oil inlet P2 of the electromagnetic valve, and an execution port A of the electromagnetic valve is communicated with a rodless cavity of the clutch slave cylinder; the Hall sensor corresponds to the sensing piece; and the wiring terminal K of the electromagnetic valve, the wiring terminal of the pressure sensor and the wiring terminal of the Hall sensor are electrically connected or in wireless communication with the main controller.
The invention has the following positive effects: 1) the oil inlet of the first brake master cylinder and the oil inlet of the second brake master cylinder are communicated with the brake oil cup; an oil outlet of the first brake master pump is respectively communicated with a first oil inlet P1 of the first hydraulic control reversing valve, a control port K of the first hydraulic control reversing valve and a second oil inlet P2 of the second hydraulic control reversing valve; an execution port A of the first hydraulic control reversing valve is communicated with a rodless cavity of the brake cylinder; an oil outlet of the second master brake pump is respectively communicated with a second oil inlet P2 of the first hydraulic control reversing valve, a control port K of the second hydraulic control reversing valve and a first oil inlet P1 of the second hydraulic control reversing valve; an execution port A of the second hydraulic control reversing valve is communicated with a first oil inlet P1 of the electromagnetic valve; an oil inlet of the first clutch master cylinder and an oil inlet of the second clutch master cylinder are communicated with the clutch oil cup, an oil outlet of the first clutch master cylinder is communicated with a first oil inlet A of the shuttle valve, an oil outlet of the second clutch master cylinder is communicated with a second oil inlet C of the shuttle valve, an oil outlet B of the shuttle valve is respectively communicated with a control port K of the pressure sensor and a second oil inlet P2 of the electromagnetic valve, and an execution port A of the electromagnetic valve is communicated with a rodless cavity of the clutch slave cylinder; the terminal K of the electromagnetic valve, the terminal of the pressure sensor and the terminal of the Hall sensor are electrically or wirelessly connected with the main controller, so that when a vehicle runs at a low speed of below 35km/h and a driver brakes the vehicle in a cab at the front end, the terminal K of the electromagnetic valve is controlled by the main controller to be electrified, a first oil inlet P1 of the electromagnetic valve is communicated with an execution port A, when the driver steps on a first brake pedal to brake, hydraulic oil from an oil outlet of a first brake master pump enters the control port K of the first hydraulic control reversing valve, a first oil inlet P1 of the first hydraulic control reversing valve is communicated with the execution port A, and a second oil inlet P2 of the second hydraulic control reversing valve is communicated with the execution port A. Pressure oil from an oil outlet of the first master brake pump enters a rodless cavity of the brake cylinder through a first oil inlet P1 of the first hydraulic control reversing valve, and a piston rod of the brake cylinder drives a brake to work so as to brake a vehicle. Meanwhile, pressure oil from an oil outlet of the first master brake pump reaches a rodless cavity of the clutch slave cylinder through a second oil inlet P2 of the second hydraulic control reversing valve and then through a first oil inlet P1 of the electromagnetic valve, a piston rod of the clutch slave cylinder drives the release fork to move, the release bearing is pushed forward, and a pressure plate of the clutch is separated from the friction plate, namely when the vehicle runs at low speed and a driver brakes the vehicle in a cab at the front end part, the pressure plate of the clutch can be automatically separated from the friction plate. When a vehicle runs at a low speed of below 35km/h and a driver brakes the vehicle in a cab at the rear end part, a terminal K of an electromagnetic valve is controlled by a main controller to be electrified, a first oil inlet P1 of the electromagnetic valve is communicated with an execution port A, when the driver steps on a second brake pedal to brake, pressure oil from an oil outlet of a second master cylinder enters a control port K of the second hydraulic control reversing valve, a first oil inlet P1 of the second hydraulic control reversing valve is communicated with the execution port A, a second oil inlet P2 of the first hydraulic control reversing valve is communicated with the execution port A, the pressure oil from the oil outlet of the second master cylinder enters a rodless cavity of a branch brake cylinder through a second oil inlet P2 of the first hydraulic control reversing valve, and a piston rod of the branch brake cylinder drives a brake to work to brake the vehicle. Meanwhile, pressure oil from an oil outlet of the second master brake pump reaches a rodless cavity of the clutch slave cylinder through a first oil inlet P1 of the second hydraulic reversing valve and a first oil inlet P1 of the electromagnetic valve, a piston rod of the clutch slave cylinder drives the release fork to move, the release bearing is pushed forward, and a pressure plate of the clutch is separated from the friction plate, namely when the vehicle runs at low speed and a driver brakes the vehicle in a cab at the rear end part, the pressure plate of the clutch can be automatically separated from the friction plate.
Drawings
FIG. 1 is a schematic diagram of the present invention;
FIG. 2 is a schematic diagram of a prior art braking mechanism;
fig. 3 is a schematic diagram of a prior art clutch mechanism.
The reference numbers in the above figures are as follows: the brake system comprises a Hall sensor 1, a first hydraulic control reversing valve 2, a second hydraulic control reversing valve 3, an electromagnetic valve 4, a sensing part 5, a shuttle valve 6, a main controller 7, a pressure sensor 8, a first brake pedal 30, a brake cylinder 31, a brake oil cup 32, a first master cylinder 33, a first clutch pedal 40, a clutch cylinder 41, a clutch oil cup 42, a first clutch master cylinder 43, a second brake pedal 50, a second master cylinder 53, a second clutch pedal 60 and a second clutch master cylinder 63.
Detailed Description
The invention is further described below with reference to the accompanying drawings and the examples given.
As shown in fig. 1, a brake clutch control device of a vehicle includes a first brake pedal 30, a wheel cylinder 31, a brake oil cup 32, a first brake master cylinder 33, a first clutch pedal 40, a clutch wheel cylinder 41, a clutch oil cup 42, and a first clutch master cylinder 43; a piston rod of the first master brake pump 33 is hinged with the first brake pedal 30, and a piston rod of the brake cylinder 31 is connected with a brake; a piston rod of the first clutch master cylinder 43 is hinged with the first clutch pedal 40, and a piston rod of the clutch slave cylinder 41 is connected with the release fork; the model of the first master cylinder 33 is ZQ3514N-010, the model of the brake cylinder 31 is EQ1026T-350234-B, the model of the first clutch master cylinder 43 is M51-1602505, and the model of the clutch cylinder 41 is BJ 130-1602610. The mounting height of the brake oil cup 32 on the vehicle is higher than that of the first brake master cylinder 33, and the mounting height of the clutch oil cup 42 on the vehicle is higher than that of the first clutch master cylinder 43.
The brake system further comprises a Hall sensor 1, a first hydraulic control reversing valve 2, a second hydraulic control reversing valve 3, an electromagnetic valve 4, a sensing part 5, a shuttle valve 6, a main controller 7, a pressure sensor 8, a second brake pedal 50, a second brake master cylinder 53, a second clutch pedal 60 and a second clutch master cylinder 63; the piston rod of the second master cylinder 53 is hinged to the second brake pedal 50, the piston rod of the second clutch master cylinder 63 is hinged to the second clutch pedal 60, the model of the second master cylinder 53 is ZQ3514N-010, the model of the second clutch master cylinder 63 is M51-1602505, the installation height of the brake oil cup 32 on the vehicle is higher than that of the second master cylinder 53 on the vehicle, and the installation height of the clutch oil cup 42 on the vehicle is higher than that of the second clutch master cylinder 63 on the vehicle. The induction piece 5 is made of magnetic steel, the Hall sensor 1 is a Hall rotating speed sensor with the model number of WS1-ZS-6, the main controller 7 is a PLC programmable logic controller, the main controller 7 is Mitsubishi F × 3U or Siemens S7-200, and the pressure sensor 8 is PT 124G-210. The oil inlet of the first brake master cylinder 33 and the oil inlet of the second brake master cylinder 53 are both communicated with the brake oil cup 32; an oil outlet of the first master brake pump 33 is respectively communicated with a first oil inlet P1 of the first hydraulic control reversing valve 2, a control port K of the first hydraulic control reversing valve 2 and a second oil inlet P2 of the second hydraulic control reversing valve 3; when pressure oil is introduced into the control port K of the first hydraulic control reversing valve 2, the first oil inlet P1 of the first hydraulic control reversing valve 2 is communicated with the execution port A; when pressure oil is not introduced into the control port K of the first hydraulic control reversing valve 2, the second oil inlet P2 of the first hydraulic control reversing valve 2 is communicated with the execution port A; the execution port A of the first hydraulic control reversing valve 2 is communicated with a rodless cavity of the brake cylinder 31; an oil outlet of the second master brake pump 53 is respectively communicated with a second oil inlet P2 of the first hydraulic control reversing valve 2, a control port K of the second hydraulic control reversing valve 3 and a first oil inlet P1 of the second hydraulic control reversing valve 3; when pressure oil is introduced into a control port K of the second hydraulic control reversing valve 3, a first oil inlet P1 of the second hydraulic control reversing valve 3 is communicated with an execution port A; when the control port K of the second hydraulic control reversing valve 3 is not filled with pressure oil, the second oil inlet P2 of the second hydraulic control reversing valve 3 is communicated with the execution port A. The actuating port A of the second hydraulic control reversing valve 3 is communicated with a first oil inlet P1 of the electromagnetic valve 4; an oil inlet of the first clutch master cylinder 43 and an oil inlet of the second clutch master cylinder 63 are both communicated with the clutch oil cup 42, an oil outlet of the first clutch master cylinder 43 is communicated with a first oil inlet A of the shuttle valve 6, an oil outlet of the second clutch master cylinder 63 is communicated with a second oil inlet C of the shuttle valve 6, an oil outlet B of the shuttle valve 6 is respectively communicated with a control port K of the pressure sensor 8 and a second oil inlet P2 of the electromagnetic valve 4, and an execution port A of the electromagnetic valve 4 is communicated with a rodless cavity of the clutch slave cylinder 41; the Hall sensor 1 corresponds to the sensing piece 5; the terminal K of the electromagnetic valve 4, the terminal of the pressure sensor 8 and the terminal of the Hall sensor 1 are electrically connected or wirelessly communicated with the main controller 7; when the main controller 7 detects that the rotating speed value of the hall sensor 1 is smaller than the rotating speed value preset in the main controller 7 and the pressure value of the pressure sensor 8 is smaller than the pressure value preset in the main controller 7, the main controller 7 controls the terminal K of the electromagnetic valve 4 to be electrified, and at this time, the first oil inlet P1 of the electromagnetic valve 4 is communicated with the execution port A. The rotation speed value preset in the main controller 7 is 35 km/h. The pressure value preset in the main controller 7 is 0.1 MPa. When the driver does not step on the first clutch pedal 40 or the second clutch pedal 60, the pressure value of the pressure sensor 8 is less than 0.1MPa, and when the driver steps on the first clutch pedal 40 or the second clutch pedal 60 to disengage the clutch, the pressure value of the pressure sensor 8 is greater than 0.1 MPa. When the main controller 7 detects that the pressure value of the pressure sensor 8 is greater than the preset pressure value in the main controller 7, the main controller 7 controls the terminal K of the electromagnetic valve 4 to lose power, and at this time, the second oil inlet P2 of the electromagnetic valve 4 is communicated with the execution port a.
When the present invention is used, the first brake pedal 30, the first master cylinder 33, the first clutch pedal 40, and the first clutch master cylinder 43 are installed in the cab at the front end, and the second brake pedal 50, the second master cylinder 53, the second clutch pedal 60, and the second clutch master cylinder 63 are installed in the cab at the rear end. The method comprises the steps of installing a sensing piece 5 on a hub of a wheel of a vehicle, installing a Hall sensor 1 on a frame of the vehicle and corresponding to the sensing piece 5, enabling the sensing piece 5 installed on the hub of the wheel to rotate together when the wheel rotates, and enabling the Hall sensor 1 to acquire the rotating speed of the wheel through the sensing piece 5.
The working principle of the invention is as follows: when a vehicle runs at a low speed of below 35km/h, and a driver only steps on the first brake pedal 30 in a cab at the front end part and forgets to step on the first clutch pedal 40 to brake the vehicle, at this time, the main controller 7 detects that the rotating speed value of the hall sensor 1 is smaller than the rotating speed value preset in the main controller 7, and because the first clutch pedal 40 is not stepped on at this time, the pressure value of the pressure sensor 8 is smaller than 0.1MPa, at this time, the main controller 7 controls the terminal K of the electromagnetic valve 4 to be electrified, the first oil inlet P1 of the electromagnetic valve 4 is communicated with the execution port a, when the driver steps on the first brake pedal 30 to brake, hydraulic oil coming out of an oil outlet of the first master brake pump 33 enters the control port K of the first hydraulic control reversing valve 2, the first oil inlet P1 of the first hydraulic control reversing valve 2 is communicated with the execution port a, and pressure oil is not introduced into the control port K of the second hydraulic control reversing valve 3, and a second oil inlet P2 of the second hydraulic control reversing valve 3 is communicated with the execution port A. Pressure oil from an oil outlet of the first master brake pump 33 enters a rodless cavity of the wheel cylinder 31 through a first oil inlet P1 of the first hydraulic control reversing valve 2, and a piston rod of the wheel cylinder 31 drives a brake to work so as to brake a vehicle. Meanwhile, pressure oil from an oil outlet of the first master brake pump 33 enters a first oil inlet P1 of the electromagnetic valve 4 through a second oil inlet P2 of the second hydraulic control reversing valve 3, and the first oil inlet P1 of the electromagnetic valve 4 is communicated with the execution port A at the moment, so that the pressure oil reaches a rodless cavity of the clutch slave cylinder 41 through the electromagnetic valve 4, a piston rod of the clutch slave cylinder 41 drives a separation fork to move, a separation bearing is pushed forwards, a pressure plate of the clutch is separated from a friction plate, and the pressure plate of the clutch can be automatically separated from the friction plate when a vehicle runs at a low speed and a driver brakes the vehicle in a cab at the front end.
When a vehicle runs at a low speed of below 35km/h, and a driver only steps on the second brake pedal 50 in a cab at the rear end part and forgets to step on the second clutch pedal 60 to brake the vehicle, at this time, the main controller 7 detects that the rotating speed value of the hall sensor 1 is smaller than the rotating speed value preset in the main controller 7, and because the second clutch pedal 60 is not stepped on at this time, the pressure value of the pressure sensor 8 is smaller than 0.1MPa, the main controller 7 controls the terminal K of the electromagnetic valve 4 to be electrified, at this time, the first oil inlet P1 of the electromagnetic valve 4 is communicated with the execution port a, when the driver steps on the second brake pedal 50 to brake, pressure oil coming out of an oil outlet of the second master cylinder 53 enters the control port K of the second hydraulic control reversing valve 3, the first oil inlet P1 of the second hydraulic control reversing valve 3 is communicated with the execution port a, and pressure oil is not introduced into the control port K of the first hydraulic reversing valve 2, the second oil inlet P2 of the first pilot-controlled directional control valve 2 is communicated with the execution port a, at this time, the pressure oil from the oil outlet of the second master brake pump 53 enters the rodless cavity of the wheel cylinder 31 through the second oil inlet P2 of the first pilot-controlled directional control valve 2, and the piston rod of the wheel cylinder 31 drives the brake to work to brake the vehicle. Meanwhile, pressure oil from an oil outlet of the second master brake pump 53 enters a first oil inlet P1 of the electromagnetic valve 4 through a first oil inlet P1 of the second hydraulic control reversing valve 3, and the first oil inlet P1 of the electromagnetic valve 4 is communicated with the execution port A at the moment, so the pressure oil reaches a rodless cavity of the clutch slave cylinder 41 through the electromagnetic valve 4, a piston rod of the clutch slave cylinder 41 drives a separation fork to move, a separation bearing is pushed forwards, a pressure plate of the clutch is separated from a friction plate, and the pressure plate of the clutch can be automatically separated from the friction plate when a vehicle runs at a low speed and a driver brakes the vehicle in a cab at the rear end.
When a driver steps on the first clutch pedal 40 in a cab at the front end, pressure oil from an oil outlet of the first clutch master pump 43 enters a control port K of the pressure sensor 8 and a second oil inlet P2 of the electromagnetic valve 4 through a first oil inlet a of the shuttle valve 6, at this time, the pressure value of the pressure sensor 8 is greater than 0.1MPa, the main controller 7 controls a terminal K of the electromagnetic valve 4 to lose power, at this time, the second oil inlet P2 of the electromagnetic valve 4 is communicated with the execution port a, the pressure oil enters a rodless cavity of the clutch slave pump 41 through a second oil inlet P2 of the electromagnetic valve 4, a piston rod of the clutch slave pump 41 drives the release fork to move, the release bearing is pushed forward, and a pressure plate of the clutch is separated from a friction plate, namely the clutch is separated. When a driver steps on the second clutch pedal 60 in a cab at the rear end part, pressure oil from an oil outlet of the second clutch master pump 63 enters a control port K of the pressure sensor 8 and a second oil inlet P2 of the electromagnetic valve 4 through a second oil inlet C of the shuttle valve 6 to be communicated, at the moment, the pressure value of the pressure sensor 8 is larger than 0.1MPa, a terminal K of the electromagnetic valve 4 is controlled to lose power by the main controller 7, at the moment, the second oil inlet P2 of the electromagnetic valve 4 is communicated with the execution port A, the pressure oil enters a rodless cavity of the clutch slave pump 41 through a second oil inlet P2 of the electromagnetic valve 4, a piston rod of the clutch slave pump 41 drives a separation fork to move, the separation bearing is pushed forwards, and a pressure plate and a friction plate of the clutch are separated, namely the clutch is separated.

Claims (1)

1. A brake clutch control device of a vehicle comprises a first brake pedal (30), a brake cylinder (31), a brake oil cup (32), a first brake master cylinder (33), a first clutch pedal (40), a clutch cylinder (41), a clutch oil cup (42) and a first clutch master cylinder (43); the method is characterized in that:
the brake system further comprises a Hall sensor (1), a first hydraulic control reversing valve (2), a second hydraulic control reversing valve (3), an electromagnetic valve (4), a sensing part (5), a shuttle valve (6), a main controller (7), a pressure sensor (8), a second brake pedal (50), a second brake master cylinder (53), a second clutch pedal (60) and a second clutch master cylinder (63); the oil inlet of the first brake master pump (33) and the oil inlet of the second brake master pump (53) are both communicated with the brake oil cup (32); an oil outlet of the first master brake pump (33) is respectively communicated with a first oil inlet P1 of the first hydraulic control reversing valve (2), a control port K of the first hydraulic control reversing valve (2) and a second oil inlet P2 of the second hydraulic control reversing valve (3); an execution port A of the first hydraulic control reversing valve (2) is communicated with a rodless cavity of a brake cylinder (31); an oil outlet of the second master brake pump (53) is respectively communicated with a second oil inlet P2 of the first hydraulic control reversing valve (2), a control port K of the second hydraulic control reversing valve (3) and a first oil inlet P1 of the second hydraulic control reversing valve (3); an execution port A of the second hydraulic control reversing valve (3) is communicated with a first oil inlet P1 of the electromagnetic valve (4); an oil inlet of the first clutch master cylinder (43) and an oil inlet of the second clutch master cylinder (63) are communicated with the clutch oil cup (42), an oil outlet of the first clutch master cylinder (43) is communicated with a first oil inlet A of the shuttle valve (6), an oil outlet of the second clutch master cylinder (63) is communicated with a second oil inlet C of the shuttle valve (6), an oil outlet B of the shuttle valve (6) is respectively communicated with a control port K of the pressure sensor (8) and a second oil inlet P2 of the electromagnetic valve (4), and an execution port A of the electromagnetic valve (4) is communicated with a rodless cavity of the clutch slave cylinder (41); the Hall sensor (1) corresponds to the induction piece (5); and a terminal K of the electromagnetic valve (4), a terminal of the pressure sensor (8) and a terminal of the Hall sensor (1) are electrically connected with the main controller (7) or are in wireless communication connection.
CN202010712121.4A 2020-07-22 2020-07-22 Brake clutch control device for vehicle Pending CN111762140A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010712121.4A CN111762140A (en) 2020-07-22 2020-07-22 Brake clutch control device for vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010712121.4A CN111762140A (en) 2020-07-22 2020-07-22 Brake clutch control device for vehicle

Publications (1)

Publication Number Publication Date
CN111762140A true CN111762140A (en) 2020-10-13

Family

ID=72727054

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010712121.4A Pending CN111762140A (en) 2020-07-22 2020-07-22 Brake clutch control device for vehicle

Country Status (1)

Country Link
CN (1) CN111762140A (en)

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