CN106347335B - A kind of force aid system for vehicle - Google Patents

A kind of force aid system for vehicle Download PDF

Info

Publication number
CN106347335B
CN106347335B CN201610887463.3A CN201610887463A CN106347335B CN 106347335 B CN106347335 B CN 106347335B CN 201610887463 A CN201610887463 A CN 201610887463A CN 106347335 B CN106347335 B CN 106347335B
Authority
CN
China
Prior art keywords
vehicle
component
brake boost
control valve
control
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201610887463.3A
Other languages
Chinese (zh)
Other versions
CN106347335A (en
Inventor
石志潇
仝威
汤建新
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhejiang Geely Holding Group Co Ltd
Zhejiang Geely New Energy Commercial Vehicle Group Co Ltd
Zhejiang Remote Commercial Vehicle R&D Co Ltd
Original Assignee
Zhejiang Geely Holding Group Co Ltd
Zhejiang Geely New Energy Commercial Vehicle Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Zhejiang Geely Holding Group Co Ltd, Zhejiang Geely New Energy Commercial Vehicle Co Ltd filed Critical Zhejiang Geely Holding Group Co Ltd
Priority to CN201610887463.3A priority Critical patent/CN106347335B/en
Publication of CN106347335A publication Critical patent/CN106347335A/en
Application granted granted Critical
Publication of CN106347335B publication Critical patent/CN106347335B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60TVEHICLE 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
    • B60T13/00Transmitting 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
    • B60T13/10Transmitting 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
    • B60T13/12Transmitting 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
    • B60T13/14Transmitting 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
    • B60T13/142Systems with master cylinder
    • B60T13/147In combination with distributor valve
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60TVEHICLE 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
    • B60T13/00Transmitting 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
    • B60T13/10Transmitting 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
    • B60T13/12Transmitting 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
    • B60T13/14Transmitting 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
    • B60T13/142Systems with master cylinder
    • B60T13/145Master cylinder integrated or hydraulically coupled with booster
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60TVEHICLE 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
    • B60T13/00Transmitting 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
    • B60T13/10Transmitting 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
    • B60T13/66Electrical control in fluid-pressure brake systems
    • B60T13/70Electrical control in fluid-pressure brake systems by fluid-controlled switches
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62DMOTOR VEHICLES; TRAILERS
    • B62D5/00Power-assisted or power-driven steering
    • B62D5/06Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle
    • B62D5/065Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle characterised by specially adapted means for varying pressurised fluid supply based on need, e.g. on-demand, variable assist
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62DMOTOR VEHICLES; TRAILERS
    • B62D5/00Power-assisted or power-driven steering
    • B62D5/06Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle
    • B62D5/07Supply of pressurised fluid for steering also supplying other consumers ; control thereof

Abstract

The present invention provides a kind of force aid systems for vehicle, are related to a kind of force aid system.The force aid system includes: brake boost component, for assisting driver to control the vehicle braking, is mainly made of corresponding hydraulic pressure drive control system component, and connect with the brak control unit of the vehicle;Power steering component is mainly made of corresponding hydraulic pressure drive control system component, and be integrated in the force aid system with the brake boost component for assisting driver to control the Vehicular turn;Electrodynamic pump, for driving the brake boost component or the power steering component that driver is assisted to control the Vehicular turn or braking.Since the brake boost component and the power steering component being integrated in together, and power is provided using the electrodynamic pump, therefore the cost of force aid system is reduced compared with the existing technology, and simultaneously convenient for can be carried out control to the kinetics of vehicle, to improve the handling stability energy of vehicle.

Description

A kind of force aid system for vehicle
Technical field
The present invention relates to a kind of force aid systems, more particularly to a kind of force aid system for vehicle.
Background technique
The hybrid vehicle that electro-motive vehicle or electric drive and other power mix driving refers to vehicle power supply For the vehicle that power or vehicle power supply are combined with other driving devices or independently driven, such as electric drive and oil The dynamic hybrid vehicle mixed of gas drive.Since effect on environment is smaller with respect to orthodox car, quickly it is widely applied.
Force aid system for vehicle mainly assists driver's operating and controlling vehicle, mitigates the intensity of driver's operating and controlling vehicle, has Effect guarantees the accuracy of driver's operating and controlling vehicle, so that traffic safety be effectively ensured.For example, force aid system for braking is driven for assisting The automobile that the person of sailing drives it is suitably braked, and the firmly intensity that driver tramples brake pedal is mitigated.Steering boost system It is that driver is assisted to make automobile steering adjustment, mitigates the firmly intensity for beating steering wheel for driver.So vehicle booster system is Important component part in modern vehicle control system.
The power steering and brake boost of existing electric car are usually two systems, and each system is by individual ECU Control, is unfavorable for integrated control, is less useful for the handling stability energy of vehicle and at high cost.
Summary of the invention
It is an object of the present invention to provide a kind of force aid system for vehicle, driven with solving electricity in the prior art Motor-car or electric drive and other power mix the brake booster of the hybrid vehicle of driving and power steering fills Set there is a problem of it is at high cost.
A further object of the present invention is to electro-motive vehicles to be improved or electric drive and other power to mix drive The handling stability energy of dynamic hybrid vehicle.
Another further object of the present invention is to freight carrying type electro-motive vehicle to be reduced or electric drive and other power Mix the cost of the force aid system of the hybrid vehicle of driving, the cost of the force aid system of especially greater than 7 tons of vehicle.
Particularly, the present invention provides a kind of force aid systems for vehicle, wherein the vehicle be electro-motive vehicle or Person's electric drive and other power mix the hybrid vehicle of driving, and the force aid system includes:
Brake boost component, for assisting driver to control the vehicle braking, mainly by corresponding hydraulic drive control Component processed is constituted, and is connect with the brak control unit of the vehicle;
Power steering component, for assisting driver to control the Vehicular turn, mainly by corresponding hydraulic drive control Component processed is constituted, and is integrated in the force aid system with the brake boost component;And
Electrodynamic pump, for driving the brake boost component or the power steering component that driver is assisted to control the vehicle Turn to or braking.
Further, the force aid system further include:
Accumulator, for maintaining the specified pressure value of the brake boost component and the power steering component, with institute It states brake boost component and the power steering component is connected;
The electrodynamic pump is the electrodynamic pump for exporting high pressure oil, and the electrodynamic pump is helped with the accumulator, the braking simultaneously Power component and the power steering component are connected;
Optionally, the interconnecting part between the electrodynamic pump and the accumulator is equipped with check valve, and the check valve makes institute It states brake boost component and the power steering component keeps the specified pressure value;
Optionally, it is installed at the interconnecting part of the accumulator and the brake boost component and the power steering component There is first pressure sensor, the first pressure sensor is for detecting whether the accumulator maintains the brake boost component And the power steering component is to the specified pressure value, and if being lower than the specified pressure value, the electric priming pump, so that It obtains the brake boost component and the power steering component maintains specified pressure value.
Further, the power steering component includes:
Diverter, for assisting driver to turn to the vehicle, the accumulator is connected with the diverter, and described turn It is divided into two lines road to device to be connected with the fuel tank of the system respectively;
First control valve starts or stops for controlling the diverter, is installed on the accumulator and the steering At the interconnecting part of device;
Second control valve is installed on institute for driving the diverter auxiliary driver to turn to the vehicle side State one in the two lines road that diverter is connected with the fuel tank of the system;
Third control valve is installed on for driving the diverter auxiliary driver to turn to the vehicle other side Another in the two lines road that the diverter is connected with the fuel tank of the system;
Optionally, the diverter is housing structure, internal to have piston, the steering system of the piston and the vehicle System is correspondingly connected with, and the accumulator is connected with the oil inlet end of the piston two sides of the diverter simultaneously, the two lines Road is connected with the oil outlet of the piston two sides of the diverter respectively.
Further, the ECU of the vehicle can control described first to third control valve according to the speed of the vehicle Corresponding opening/closing time, be consistent the steering of the vehicle and the rotation of the steering wheel of the vehicle.
Further, the brake boost component includes:
Master cylinder, the brak control unit for controlling the vehicle is braked, described with brake boost chamber Brake boost chamber is connected with the fuel tank of the accumulator and the system, and the connecting rod of the brake pedal of the vehicle protrudes into It is connected in the brake boost chamber and with the master cylinder;
4th control valve, the size of the brake boost for controlling vehicle described in auxiliary operator brake, is installed on institute At the interconnecting part for stating brake boost chamber and the accumulator;
5th control valve is installed on the brake boost chamber and the system for controlling the size of the brake boost The interconnecting part of the fuel tank of system.Further,
The brake boost component further includes
Displacement sensor, the brake pedal for detecting the vehicle are trampled displacement, are then forwarded to the vehicle ECU;
The ECU of the vehicle is trampled displacement according to described, and the pedal force for calculating driver is stepped on the brake is trampled Then the acceleration of plate obtains required brake boost value, then the ECU of the vehicle controls institute according to the brake boost value The 4th control valve and the 5th control valve are stated, the brake force for exporting the braking system of the vehicle and the brake pedal Displacement is trampled to be consistent.
Further,
Described first to the 5th control valve is solenoid valve device, and the ECU of the vehicle passes through Linear Control mode Described first is controlled to the 5th control valve;
Optionally, described first to the 5th control valve be normally closed type control valve.
Further,
Third pressure sensor is installed at the interconnecting part of first control valve and the diverter, for detecting by institute It states accumulator and is delivered to the pressure of the diverter and whether reach the specified pressure value.
Further, second pressure biography is installed at the interconnecting part between the 4th control valve and the brake boost chamber Sensor, for detecting by whether the pressure that the accumulator is delivered to the brake boost chamber reaches the specified pressure value.
The force aid system of the invention, since the brake boost component and the power steering component are integrated in one It rises, and provides power using the electrodynamic pump, therefore reduce the cost of force aid system compared with the existing technology, and be convenient for simultaneously Control can be carried out to the kinetics of vehicle, to improve the handling stability energy of vehicle.
Further, the force aid system of the invention, since the brake boost component can be defeated by the electrodynamic pump High pressure oil out, therefore the brake boost component can provide big assist rate, to make 7 tons or more of driven light truck can To use hydraulic booster system, compared with the prior art in greater than 7 tons of electric truck mostly use air-pressure brake, components are more, Weight is big, disadvantage at high cost, to reduce the cost of the force aid system of freight carrying type electric vehicle.Meanwhile there is high pressure oil Hydraulic pressure drive control system component have the characteristics that corresponding actions rapid sensitive.Therefore it can be further improved the force aid system Execute accuracy.
Further, the force aid system of the invention reduces the power steering component compared with the existing technology Complexity keeps its structure simple, creates a further reduction the cost of the force aid system.Only need three control valves and one Diverter can execute power steering movement, consequently facilitating assembly and subsequent maintenance maintenance.
According to the following detailed description of specific embodiments of the present invention in conjunction with the accompanying drawings, those skilled in the art will be brighter The above and other objects, advantages and features of the present invention.
Detailed description of the invention
Some specific embodiments of the present invention is described in detail by way of example and not limitation with reference to the accompanying drawings hereinafter. Identical appended drawing reference denotes same or similar part or part in attached drawing.It should be appreciated by those skilled in the art that these What attached drawing was not necessarily drawn to scale.In attached drawing:
Fig. 1 is the hydraulic circuit diagram of the force aid system according to an embodiment of the invention.
Specific embodiment
It is illustrated in conjunction with Fig. 1, the force aid system for vehicle may include: brake boost component, power steering Component and electrodynamic pump 1.
The brake boost component is for assisting driver to control the Vehicular turn, mainly by corresponding hydraulic drive Control assembly is constituted, and is connect with the brak control unit of the vehicle 13.The power steering component is for assisting driver The vehicle braking is controlled, is mainly made of corresponding hydraulic pressure drive control system component, and is integrated with the brake boost component In in the force aid system.The electrodynamic pump 1 is for driving the brake boost component or the power steering component to assist driving The person of sailing controls the Vehicular turn or braking.
Wherein, the vehicle is the hybrid electric vehicle that electro-motive vehicle or electric drive and other power mix driving ?.
Since the brake boost component and the power steering component to be integrated in together, and use the electrodynamic pump 1 Power is provided, therefore reduces the cost of force aid system compared with the existing technology, and simultaneously convenient for the dynamic performance to vehicle It is controlled, to improve the handling stability energy of vehicle.
It is illustrated continuing with Fig. 1, further, the force aid system can also include accumulator 2.The accumulator 2 for maintaining the specified pressure value of the brake boost component and the power steering component, with the brake boost component And the power steering component is connected.The electrodynamic pump 1 is the electrodynamic pump 1 for exporting high pressure oil, the electrodynamic pump 1 simultaneously with The accumulator 2, the brake boost component and the power steering component are connected.
Optionally, the interconnecting part between the electrodynamic pump 1 and the accumulator 2 is equipped with check valve 14, the check valve 14 make the brake boost component and the power steering component keep the specified pressure value.
Optionally, the accumulator 2 is installed with the interconnecting part of the brake boost component and the power steering component There is first pressure sensor 15, the first pressure sensor 15 is for detecting whether the accumulator 2 maintains the braking to help Power component and the power steering component are to the specified pressure value, if being lower than the specified pressure value, the electrodynamic pump 1 is opened It is dynamic, so that the brake boost component and the power steering component maintain specified pressure value.
Since the brake boost component can export high pressure oil, the brake boost component by the electrodynamic pump 1 Big assist rate can be provided, to allow 7 tons or more of driven light truck using hydraulic booster system, relatively existing skill Electric truck in art greater than 7 tons mostly uses air-pressure brake, and components are more, and weight is big, disadvantage at high cost, to reduce The cost of the force aid system of freight carrying type electric vehicle.Meanwhile the hydraulic pressure drive control system component with high pressure oil has corresponding actions The characteristics of rapid sensitive.Therefore it can be further improved the execution accuracy of the force aid system.
The braking can be effectively maintained to help within a certain period of time in addition, the accumulator 2 is used in combination with check valve 14 High hydraulic pressure in power component and the power steering component extends described electronic to reduce the use of the electrodynamic pump 1 The service life of pump 1.
It is illustrated continuing with Fig. 1, further, the power steering component may include that diverter 6, first controls Valve 5, the second control valve 3 and third control valve 4.
For assisting driver to turn to the vehicle, the accumulator 2 is connected the diverter 6 with the diverter 6, The diverter 6 divides to be connected with the fuel tank 16 of the system respectively for two lines road.First control valve 5 is for controlling institute It states diverter 6 to start or stop, is installed on the interconnecting part of the accumulator 2 and the diverter 6.Second control valve 3 For driving the diverter 6 that driver is assisted to turn to the vehicle side, it is installed on the diverter 6 and the system The two lines road that is connected of fuel tank 16 in one.The third control valve 4 is for driving the auxiliary of diverter 6 to drive The person of sailing turns to the vehicle other side, is installed on the diverter 6 is connected with the fuel tank 16 of the system described two Another in route.
Optionally, the diverter 6 is housing structure, internal to have piston, the steering of the piston and the vehicle System is correspondingly connected with, and the accumulator 2 is connected with the oil inlet end of the piston two sides of the diverter 6 simultaneously, and described two Route is connected with the oil outlet of the piston two sides of the diverter 6 respectively.
So set, compared with the existing technology, reducing the complexity of the power steering component, keep its structure simple It is single, create a further reduction the cost of the force aid system.Only need three control valves and a diverter that can execute steering Power-assisted movement, consequently facilitating assembly and subsequent maintenance maintenance.
It is illustrated continuing with Fig. 1, further, the ECU of the vehicle can be controlled according to the speed of the vehicle Described first to third control valve 5,3,4 corresponding opening/closing time, make the steering of the vehicle and the steering wheel of the vehicle Rotation is consistent.
The full name of the ECU of the vehicle is Electronic Control Unit, refers to car running computer.
So set, the execution accuracy of force aid system can be effectively ensured.
It is illustrated continuing with Fig. 1, further, the brake boost component may include master cylinder the 12, the 4th Control valve 7 and the 5th control valve 8.
The brak control unit 13 that the master cylinder 12 is used to control the vehicle is braked, with brake boost Chamber 9, the brake boost chamber 9 are connected with the fuel tank 16 of the accumulator 2 and the system, the brake pedal of the vehicle 10 connecting rod protrudes into the brake boost chamber 9 and is connected with the master cylinder 12.4th control valve is for controlling The size of the brake boost of vehicle described in system auxiliary operator brake, is installed on the brake boost chamber and the accumulator At interconnecting part.5th control valve is used to control the size of the brake boost, is installed on the brake boost chamber and institute State the interconnecting part of the fuel tank of system.
It should be noted that the control process of the 4th control valve 7 and the 5th control valve 8 is that driver tramples When the brake pedal 10 of the vehicle is braked, the 4th control valve 7 is opened, and the 5th control valve 8 is closed, and makes high pressure Oil enters in the brake boost chamber 9 and is pressurized.When reaching power-assisted value, the 4th control valve 7 is closed, the 5th control Valve 8 processed remains off.When driver stops braking the vehicle, the return spring of the master cylinder 12 makes the vehicle Brake pedal 10, while the 4th control valve 7 is closed, and the 5th control valve 8 is opened, in the brake boost chamber 9 High pressure oil is back to the fuel tank 16.
So set, compared with the existing technology, reducing the complexity of the brake boost component, keep its structure simple It is single, it is only necessary to which that two control valves and a master cylinder can execute brake boost movement, consequently facilitating assembly and subsequent maintenance Maintenance.
It is illustrated continuing with Fig. 1, further, the brake boost component can also include displacement sensor 11, Its brake pedal 10 for being used to detect the vehicle is trampled displacement, is then forwarded to the ECU of the vehicle.
The ECU of the vehicle is trampled displacement according to described, and the pedal force for calculating driver is stepped on the brake is trampled Then the acceleration of plate 10 obtains required brake boost value, then the ECU of the vehicle is controlled according to the brake boost value 4th control valve 7 and the 5th control valve 8, the brake force for exporting the braking system of the vehicle are stepped on the brake The displacement of being trampled of plate 10 is consistent.
Brake boost component described in compared with the existing technology and the power steering component use an ECU respectively, this Application the brake boost component and the power steering component by the vehicle ECU control, only use an ECU into Row control, to further reduce the cost of the force aid system.
It is illustrated continuing with Fig. 1, further,
First control valve 5 to the 5th control valve 8 is solenoid valve device, and the ECU of the vehicle passes through linear Control mode controls first control valve 5 to the 5th control valve 8;
Optionally, the control valve, that is, first control valve 5 to the 5th control valve 8 is normally closed type control valve.
So set, solenoid valve device can realize Linear Control, power steering component can be realized and helped with speed change Power ratio;Brake force decoupling may be implemented for brake boost component, make to keep identical braking defeated while stopping power feedback Power output;Convenient for the realization of different control strategies.Convenient for the realization of the different braking energy regenerating strategy of electric vehicle.Make to turn to and help The response quickly of power and brake boost.
The control valve, that is, first control valve 5 to the 5th control valve 8 is normally closed type control valve, to guarantee vehicle It is in close state under non-steering state, guarantees that control is stablized.Make institute under non-power-assisted state using normally closed solenoid valve Power-assisted component is stated to be in close state, thus the flat rate of the use for reducing electrodynamic pump 1, to extend its service life.In non-power-assisted state Under, it is in close state force aid system, saves the energy of vehicle.
It is illustrated continuing with Fig. 1, further,
First control valve 5 and the interconnecting part of the diverter 6 are equipped with third pressure sensor 17, for detect by Whether the pressure that the accumulator 2 is delivered to the diverter 6 reaches the specified pressure value.
It is illustrated continuing with Fig. 1, further, the company between the 4th control valve 7 and the brake boost chamber 9 Logical portion is equipped with second pressure sensor 18, is by the pressure that the accumulator 2 is delivered to the brake boost chamber 9 for detecting It is no to reach the specified pressure value.
First pressure sensor 15 to third pressure sensor 17 can force aid system described in accurate and implementing monitoring, To guarantee the system run all right, accurate, safe and reliable.
It should be noted that the vehicle adjusts the braking of each wheel 20 of the vehicle by brak control unit 13 Power realizes the relevant control strategy of various brakings.And phase is carried out by corresponding 4th pressure sensor 19 in the process The detection answered.
So far, although those skilled in the art will appreciate that present invention has been shown and described in detail herein multiple shows Example property embodiment still without departing from the spirit and scope of the present invention, still can according to the present disclosure directly Determine or deduce out many other variations or modifications consistent with the principles of the invention.Therefore, the scope of the present invention is understood that and recognizes It is set to and covers all such other variations or modifications.

Claims (10)

1. a kind of force aid system for vehicle, wherein the vehicle is electro-motive vehicle or electric drive and other power phases The hybrid vehicle of combination drive, the force aid system include:
Brake boost component, for assisting driver to control the vehicle braking, mainly by corresponding hydraulic pressure drive control system group Part is constituted, and is connect with the brak control unit of the vehicle, and the brake boost component includes master cylinder, the braking master The brak control unit that cylinder is used to control the vehicle is braked, with brake boost chamber;
Power steering component, for assisting driver to control the Vehicular turn, mainly by corresponding hydraulic pressure drive control system group Part is constituted, and is integrated in the force aid system with the brake boost component, and the power steering component includes for assisting Driver turns to the diverter of the vehicle;And
Electrodynamic pump turns for driving the brake boost component or the power steering component that driver is assisted to control the vehicle To or braking;
Accumulator, for maintaining the specified pressure value of the brake boost component and the power steering component, with the system Dynamic power-assisted component and the power steering component are connected;
The accumulator is connected with the diverter, the diverter be divided into two lines road respectively with the fuel tank phase of the system Connection;
Interconnecting part between the electrodynamic pump and the accumulator is equipped with check valve, and the check valve makes the brake boost group Part and the power steering component keep the specified pressure value;
First pressure is installed at the interconnecting part of the accumulator and the brake boost component and the power steering component Sensor, the first pressure sensor is for detecting whether the accumulator maintains the brake boost component and the steering Power-assisted component is to the specified pressure value, if being lower than the specified pressure value, the electric priming pump, so that the braking Power-assisted component and the power steering component maintain specified pressure value;
The brake boost chamber is connected with the fuel tank of the accumulator and the system, the company of the brake pedal of the vehicle Extension bar protrudes into the brake boost chamber and is connected with the master cylinder;
First control valve is started or stoped for controlling the diverter, is installed on the accumulator and the diverter At interconnecting part;
4th control valve, the size of the brake boost for controlling vehicle described in auxiliary operator brake, is installed on the system At the interconnecting part of dynamic power-assisted chamber and the accumulator,
Wherein, first control valve and the 4th control valve are normally closed type control valve.
2. force aid system according to claim 1, which is characterized in that the power steering component further include:
Second control valve is installed on described turn for driving the diverter auxiliary driver to turn to the vehicle side One in the two lines road being connected to device with the fuel tank of the system;
Third control valve is installed on described for driving the diverter auxiliary driver to turn to the vehicle other side Another in the two lines road that diverter is connected with the fuel tank of the system.
3. force aid system according to claim 2, which is characterized in that the diverter be housing structure, inside have The steering system of piston, the piston and the vehicle is correspondingly connected with, the accumulator work with the diverter simultaneously The oil inlet end of plug two sides is connected, and the two lines road is connected with the oil outlet of the piston two sides of the diverter respectively It is logical.
4. force aid system according to claim 3, which is characterized in that the ECU of the vehicle can be according to the vehicle Speed, the corresponding opening/closing time of control described first to third control valve make steering and the direction of the vehicle of the vehicle The rotation of disk is consistent.
5. force aid system according to claim 3, which is characterized in that the brake boost component further include:
5th control valve is installed on the brake boost chamber and the system for controlling the size of the brake boost The interconnecting part of fuel tank.
6. force aid system according to claim 5, which is characterized in that
The brake boost component further includes
Displacement sensor, the brake pedal for detecting the vehicle are trampled displacement, are then forwarded to the vehicle ECU;
The ECU of the vehicle is trampled displacement according to described, is calculated the pedal force of driver and is trampled the brake pedal Then acceleration obtains required brake boost value, then the ECU of the vehicle is according to brake boost value control described the Four control valves and the 5th control valve, the brake force for exporting the braking system of the vehicle are stepped on the brake pedal Displacement is stepped on to be consistent.
7. force aid system according to claim 6, which is characterized in that
Described first to the 5th control valve is solenoid valve device, and the ECU of the vehicle is controlled by Linear Control mode Described first to the 5th control valve.
8. force aid system according to claim 7, which is characterized in that described first to the 5th control valve is normally closed Formula control valve.
9. the force aid system according to any one of claim 2 to 8, which is characterized in that
Third pressure sensor is installed at the interconnecting part of first control valve and the diverter, for detecting by the storage Whether the pressure that energy device is delivered to the diverter reaches the specified pressure value.
10. the force aid system according to any one of claim 5 to 8, which is characterized in that the 4th control valve with it is described Second pressure sensor is installed at the interconnecting part between brake boost chamber, the system is delivered to by the accumulator for detecting Whether the pressure of dynamic power-assisted chamber reaches the specified pressure value.
CN201610887463.3A 2016-10-11 2016-10-11 A kind of force aid system for vehicle Active CN106347335B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610887463.3A CN106347335B (en) 2016-10-11 2016-10-11 A kind of force aid system for vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610887463.3A CN106347335B (en) 2016-10-11 2016-10-11 A kind of force aid system for vehicle

Publications (2)

Publication Number Publication Date
CN106347335A CN106347335A (en) 2017-01-25
CN106347335B true CN106347335B (en) 2019-08-30

Family

ID=57865628

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610887463.3A Active CN106347335B (en) 2016-10-11 2016-10-11 A kind of force aid system for vehicle

Country Status (1)

Country Link
CN (1) CN106347335B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106828466A (en) * 2017-02-28 2017-06-13 安徽江淮汽车集团股份有限公司 A kind of pure electric vehicle power-assisted braking arrangement and braking method
CN114684256B (en) * 2020-12-30 2023-07-11 比亚迪股份有限公司 Steering braking system and vehicle with same

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1785727A (en) * 2004-12-10 2006-06-14 比亚迪股份有限公司 Hydraulic assisted braking system of electric power automobile
CN102862601A (en) * 2011-07-05 2013-01-09 东风汽车股份有限公司 Electric hydraulic power-assisted steering brake system of automobile
CN203651881U (en) * 2013-12-30 2014-06-18 东风汽车股份有限公司 Hydraulic booster circuit system
CN204279606U (en) * 2014-11-27 2015-04-22 盐城市步高汽配制造有限公司 Pure electric coach Electro-Hydraulic Power Steering System

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3797263B2 (en) * 2002-04-12 2006-07-12 三菱ふそうトラック・バス株式会社 Hydraulic booster brake system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1785727A (en) * 2004-12-10 2006-06-14 比亚迪股份有限公司 Hydraulic assisted braking system of electric power automobile
CN102862601A (en) * 2011-07-05 2013-01-09 东风汽车股份有限公司 Electric hydraulic power-assisted steering brake system of automobile
CN203651881U (en) * 2013-12-30 2014-06-18 东风汽车股份有限公司 Hydraulic booster circuit system
CN204279606U (en) * 2014-11-27 2015-04-22 盐城市步高汽配制造有限公司 Pure electric coach Electro-Hydraulic Power Steering System

Also Published As

Publication number Publication date
CN106347335A (en) 2017-01-25

Similar Documents

Publication Publication Date Title
CN103318158B (en) Integrated electronic hydraulic brake system of automobile
CN206406908U (en) A kind of motor driving EHB for improving master cylinder
CN102529925B (en) Braking force control system
US11603084B2 (en) Brake device for vehicle and method for controlling the same
CN106891878A (en) A kind of motor for improving master cylinder drives EHB
US20160272176A1 (en) Vehicle control apparatus and vehicle control system
CN102256839B (en) Brake device for a motor vehicle and method for controlling said brake system
US20140084673A1 (en) Brake Control Apparatus
US20110066345A1 (en) Brake System
US20150061362A1 (en) Brake control apparatus
US11597367B2 (en) Hydraulic brake system
CN102795219B (en) Motor-assisted integrated automobile brake system
US20160280201A1 (en) Brake control method for hybrid electric vehicle
CN103619679A (en) Method for hydraulically boosting an electric parking brake of a vehicle
CN102470841B (en) The automobile braking device of hydraulic pressure, there is the operating method of the automobile of this brake equipment and the automobile braking device for hydraulic pressure
WO2023216746A1 (en) Braking apparatus for unmanned mining dump truck and braking method therefor
JP2017144949A (en) Brake device for electric car
CN103946079A (en) Brake device
CN202728214U (en) Motor-assistant integrated automobile brake system
CN106347335B (en) A kind of force aid system for vehicle
CN105008193B (en) Hydraulic brake apparatus for vehicle
CN109159776A (en) A kind of vehicle wheel cylinder hydraulic force control system and method based on dual power source
JP5566873B2 (en) Brake device for vehicle
JP2015110361A (en) Vehicular brake device
CN103359099A (en) Control system and control method for automobile braking vacuum degree

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant
CP01 Change in the name or title of a patent holder
CP01 Change in the name or title of a patent holder

Address after: 310051 No. 1760, Jiangling Road, Hangzhou, Zhejiang, Binjiang District

Patentee after: ZHEJIANG GEELY HOLDING GROUP Co.,Ltd.

Patentee after: ZHEJIANG GEELY NEW ENERGY COMMERCIAL VEHICLE GROUP Co.,Ltd.

Address before: 310051 No. 1760, Jiangling Road, Hangzhou, Zhejiang, Binjiang District

Patentee before: ZHEJIANG GEELY HOLDING GROUP Co.,Ltd.

Patentee before: ZHEJIANG GEELY NEW ENERGY COMMERCIAL VEHICLES Co.,Ltd.

TR01 Transfer of patent right
TR01 Transfer of patent right

Effective date of registration: 20211208

Address after: 310051 No. 1760, Jiangling Road, Hangzhou, Zhejiang, Binjiang District

Patentee after: ZHEJIANG GEELY HOLDING GROUP Co.,Ltd.

Patentee after: ZHEJIANG GEELY NEW ENERGY COMMERCIAL VEHICLE GROUP Co.,Ltd.

Patentee after: Zhejiang remote commercial vehicle R & D Co.,Ltd.

Address before: 310051 No. 1760, Jiangling Road, Hangzhou, Zhejiang, Binjiang District

Patentee before: ZHEJIANG GEELY HOLDING GROUP Co.,Ltd.

Patentee before: ZHEJIANG GEELY NEW ENERGY COMMERCIAL VEHICLE GROUP Co.,Ltd.