CN106347335B - A kind of force aid system for vehicle - Google Patents
A kind of force aid system for vehicle Download PDFInfo
- 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
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- vehicle
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- brake boost
- control valve
- control
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
- B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
- B60T13/12—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release the fluid being liquid
- B60T13/14—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release the fluid being liquid using accumulators or reservoirs fed by pumps
- B60T13/142—Systems with master cylinder
- B60T13/147—In combination with distributor valve
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
- B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
- B60T13/12—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release the fluid being liquid
- B60T13/14—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release the fluid being liquid using accumulators or reservoirs fed by pumps
- B60T13/142—Systems with master cylinder
- B60T13/145—Master cylinder integrated or hydraulically coupled with booster
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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
- B60T13/66—Electrical control in fluid-pressure brake systems
- B60T13/70—Electrical control in fluid-pressure brake systems by fluid-controlled switches
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D5/00—Power-assisted or power-driven steering
- B62D5/06—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle
- B62D5/065—Power-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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D5/00—Power-assisted or power-driven steering
- B62D5/06—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle
- B62D5/07—Supply of pressurised fluid for steering also supplying other consumers ; control thereof
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Regulating Braking Force (AREA)
- Valves And Accessory Devices For Braking Systems (AREA)
Abstract
The 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
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.
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 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| 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)
| 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)
| Publication number | Priority date | Publication date | Assignee | Title |
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| 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 |
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Patent Citations (4)
| 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 |
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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. |
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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. |