CN110077382A - Two-wheeled centralized driving brake energy recovering system of electric vehicle based on double-way check valve and linear exhaust solenoid valve - Google Patents
Two-wheeled centralized driving brake energy recovering system of electric vehicle based on double-way check valve and linear exhaust solenoid valve Download PDFInfo
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- CN110077382A CN110077382A CN201910429555.0A CN201910429555A CN110077382A CN 110077382 A CN110077382 A CN 110077382A CN 201910429555 A CN201910429555 A CN 201910429555A CN 110077382 A CN110077382 A CN 110077382A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L7/00—Electrodynamic brake systems for vehicles in general
- B60L7/10—Dynamic electric regenerative braking
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L7/00—Electrodynamic brake systems for vehicles in general
- B60L7/24—Electrodynamic brake systems for vehicles in general with additional mechanical or electromagnetic braking
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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
- B60T13/68—Electrical control in fluid-pressure brake systems by electrically-controlled valves
- B60T13/683—Electrical control in fluid-pressure brake systems by electrically-controlled valves in pneumatic systems or parts thereof
Abstract
The present invention provides a kind of two-wheeled centralized driving brake energy recovering system of electric vehicle based on double-way check valve and linear exhaust solenoid valve, belong to electric vehicle brake power recovery technology field, the program existing by being based on increasing secondary air accumulator in air pressure ABS solenoid valve decoupling type brake energy recovering system, switch electromagnetic valve, triple valve, left driving wheel double-way check valve, right driving wheel double-way check valve, the components such as the linear exhaust solenoid valve of drive shaft, make a left side, right driving wheel braking gas circuit all has double back line structure, this makes it in Brake energy recovery, the high gas source of an air pressure may be selected and provide high pressure gas for left driving wheel braking gas chamber and right driving wheel braking gas chamber, when continuously being braked present in existing scheme to efficiently solve, because of the relatively low bring driving wheel coupling braking force response rate of bleed pressure Slowly, and the critical issue of demand brake force is lagged behind.
Description
Technical field
The invention belongs to electric vehicle brake power recovery technology fields, and in particular to one kind is based on double-way check valve and linearly
The two-wheeled centralized driving brake energy recovering system of electric vehicle of exhaust solenoid valve.
Background technique
With getting worse for environmental pollution and energy security problem, electric vehicle is increasingly valued by people, braking
Energy recycling system is one of energy-efficient key means of electric vehicle, and energy of the script consumption in friction catch can be passed through electricity by it
Machine is recycled and is used, as document " decoupling type brake energy recovering system research " based on EMB (Yang Kun, Gao Song, Wang Jie,
Equal study [J] automobile engineering, 2016,38 (8): 1072-1079. based on the decoupling type brake energy recovering system of EMB) institute
It states, 30% or so of energy needed for this portion of energy can account for driving vehicle.
Currently, brake energy recovering system can be divided into manifold type and two kinds of decoupling type, manifold type braking according to working principle
Though energy recycling system without the arrangement of the former vehicle braking system of change, has, brake feel is poor, Brake energy recovery rate is low
Disadvantage, application gradually decreases at present.
Decoupling type brake energy recovering system can be driven by the coupling of mechanical braking force and motor braking power accurately to meet
The braking requirement for the person of sailing has the advantage that brake feel is good, Brake energy recovery rate is high.When motor braking power can be fully met
When operator brake demand, brake force is provided by motor braking completely, when motor braking power cannot fully meet operator brake
When demand, vehicle brake force is provided jointly by motor braking and mechanical braking, therefore the conjunction of motor braking power and mechanical braking force
The demand brake force that can power accurately track driver just becomes the key for influencing decoupling type brake energy recovering system effect.
For electric commercial vehicle, since complete vehicle weight is larger, shadow of the Brake energy recovery effect to vehicle economy
Sound is just particularly important, while from reduction system cost, the angle of development cost and system reform workload, currently,
Studying more electric commercial vehicle decoupling type brake energy recovering system scheme is document " integral new-energy passenger URBS air pressure ABS electricity
Magnet valve failure analysis and improvement " (Yang Kun, Ma Chao, Guo Dong wait the URBS air pressure ABS solenoid valve failure analysis of integral new-energy passenger and change
Into [J] Guangxi University journal (natural science edition), 2017,42 (5): 1647-1656.) mention in a text based on air pressure ABS
The decoupling type brake energy recovering system of solenoid valve；This scheme has at low cost, the advantage of Yi Shixian, but finds under study for action
There are the following problems: the adjustment speed of brake chamber pressure depends on the difference of air accumulator gas pressure and brake chamber gas pressure
Value, when continuously braking number is greater than twice when driving, pressure can be substantially reduced, and continuously brake in air accumulator number
More, pressure decline is bigger, and the adjustment speed of brake chamber pressure can be substantially reduced at this time, and then make brake energy recovering system
The coupling brake force for being applied to vehicle can lag behind demand brake force, thus bring brake feel different from conventional braking system,
And it may cause the serious problems such as braking distance is elongated.
Summary of the invention
The present invention is having the decoupling type brake energy recovering system scheme based on air pressure ABS solenoid valve regarding to the issue above
On the basis of a kind of two-wheeled centralized driving electric vehicle brake power based on double-way check valve and linear exhaust solenoid valve be provided return
Receipts system in the program, passes through secondary air accumulator (3), switch electromagnetic valve (5), drive shaft in existing brake energy recovering system
Linear exhaust solenoid valve (7), the first triple valve (8), drive shaft relay valve (9), the second triple valve (10), right driving wheel bilateral
Check valve (11), right driving wheel brake pressure sensor (16), left driving wheel double-way check valve (27), right non-driven wheel
The components such as brake-pressure sensor (40) and brake pedal displacement sensor (44), making each driving wheel brake circuit tool, there are two solely
Vertical high-pressure air source and double back line structure, and when triggering Brake energy recovery, an air pressure can be selected by control system
High gas source provides high pressure gas for each driving wheel braking gas chamber, so that bleed pressure is relatively low when effectively solving continuous braking
Bring air pressure brake-force control speed reduces problem.
It is a kind of that system is recycled based on the two-wheeled centralized driving electric vehicle brake power of double-way check valve and linear exhaust solenoid valve
System is by brake pedal (1), brake valve (2), secondary air accumulator (3), main air accumulator (4), switch electromagnetic valve (5), air compressor
(6), the linear exhaust solenoid valve of drive shaft (7), the first triple valve (8), drive shaft relay valve (9), the second triple valve (10), right drive
Motor car wheel double-way check valve (11), right driving wheel wheel speed sensors (14), right driving wheel braking gas chamber (15), right driving vehicle
Take turns brake-pressure sensor (16), right driving wheel ABS solenoid valve (17), driving motor and transmission device (19), driving motor
Controller (20), left driving wheel ABS solenoid valve (21), left driving wheel braking gas chamber (23), left driving wheel wheel speed sensing
Device (24), left driving wheel double-way check valve (27), battery management system (28), entire car controller (29), brake monitor
(30), nonpowered axle relay valve (31), third triple valve (32), left non-driven wheel wheel speed sensors (35), left non-driven vehicle
Take turns brake chamber (36), left non-driven wheel ABS solenoid valve (37), right non-driven wheel ABS solenoid valve (38), right non-driven vehicle
Take turns brake chamber (39), right non-driven wheel brake pressure sensor (40), right non-driven wheel wheel speed sensors (41), braking
Pedal displacement sensor (44) composition.
The air outlet b and main air accumulator (4) air inlet port a of air compressor (6) pass through air circuit connection, air compressor
(6) the air inlet port a of air outlet a and secondary air accumulator (3) pass through air circuit connection.
The air inlet port a of brake valve (2) is connected with the air outlet d of main air accumulator (4) by gas circuit, brake valve (2)
Air inlet port b is connected with the air outlet c of main air accumulator (4) by gas circuit, the air outlet c and nonpowered axle of brake valve (2)
The control port c of relay valve (31) is connected by gas circuit, the air outlet d of brake valve (2) and the control of drive shaft relay valve (9)
Port c is connected by gas circuit.
The air outlet b of secondary air accumulator (3) is connected by gas circuit with the air inlet port a of switch electromagnetic valve (5), and electromagnetism is switched
The air outlet b of valve (5) is connected with the air inlet port a of the linear exhaust solenoid valve of drive shaft (7) by gas circuit, drive shaft linear rows
The air outlet b of pneumoelectric magnet valve (7) is connected by gas circuit with the air inlet port a of the first triple valve (8), the first triple valve (8)
Air outlet b is connected by gas circuit with the air inlet port b of right driving wheel double-way check valve (11), and the first triple valve (8) goes out
Gas port c is connected by gas circuit with the air inlet port b of left driving wheel double-way check valve (27).
The port a of drive shaft relay valve (9) is connected with the air outlet e of main air accumulator (4) by gas circuit, drive shaft servo
The port b of valve (9) is connected by gas circuit with the port b of the second triple valve (10).
The air inlet port a phase that the port a of second triple valve (10) passes through gas circuit and right driving wheel double-way check valve (11)
Even, the air inlet that the air outlet c of right driving wheel double-way check valve (11) passes through gas circuit and right driving wheel ABS solenoid valve (17)
Port a is connected, and the air inlet port b of right driving wheel ABS solenoid valve (17) and right driving wheel braking gas chamber (15) pass through gas circuit
It is connected.
Right driving wheel brake pressure sensor (16) is installed on right driving wheel braking gas chamber (15).
The air inlet port a phase that the port c of second triple valve (10) passes through gas circuit and left driving wheel double-way check valve (27)
Even, the air inlet that the air outlet c of left driving wheel double-way check valve (27) passes through gas circuit and left driving wheel ABS solenoid valve (21)
Port a is connected, and the air inlet port b of left driving wheel ABS solenoid valve (21) passes through gas circuit and left driving wheel braking gas chamber (23)
It is connected.
The port a of nonpowered axle relay valve (31) is connected with the air outlet b of main air accumulator (4) by gas circuit, non-driven
The port b of axis relay valve (31) is connected by gas circuit with the port b of third triple valve (32), the port c of third triple valve (32)
It is connected by gas circuit with the air inlet port a of left non-driven wheel ABS solenoid valve (37), left non-driven wheel ABS solenoid valve (37)
Air inlet port b be connected by gas circuit with the non-driven wheel braking gas chamber (36) in a left side, the port a of third triple valve (32) passes through gas
Road is connected with the air inlet port a of right non-driven wheel ABS solenoid valve (38), the air inlet of right non-driven wheel ABS solenoid valve (38)
Port b is connected by gas circuit with right non-driven wheel braking gas chamber (39).
Right non-driven wheel brake pressure sensor (40) is installed on right non-driven wheel braking gas chamber (39).
Right driving wheel wheel speed sensors (14), left driving wheel wheel speed sensors (24), left non-driven wheel wheel speed pass
Sensor (35), right non-driven wheel wheel speed sensors (41) are connected by signal wire with brake monitor (30).
Right driving wheel ABS solenoid valve (17), left driving wheel ABS solenoid valve (21), left non-driven wheel ABS solenoid valve
(37), right non-driven wheel ABS solenoid valve (38) is connected by signal wire with brake monitor (30).
Switch electromagnetic valve (5), the linear exhaust solenoid valve of drive shaft (7), right driving wheel brake pressure sensor (16), the right side
Non-driven wheel brake pressure sensor (40) and brake pedal displacement sensor (44) pass through signal wire and entire car controller
(29) it is connected.
Drive motor controller (20), battery management system (28), entire car controller (29) and brake monitor (30) are logical
CAN bus is crossed to be connected.
It is returned based on the above-mentioned two-wheeled centralized driving electric vehicle brake power based on double-way check valve and linear exhaust solenoid valve
Receipts system, entire car controller (29) are based on speed, the brake pedal displacement sensing that brake monitor (30) are exported by CAN bus
The battery permission maximum charge electricity that pedal displacement signal, the battery management system (28) of device (44) output are exported by CAN bus
Stream, the maximum electricity that the driving motor and transmission device (19) that drive motor controller (20) is exported by CAN bus can be provided
Brake force judges whether to trigger braking energy recovering function, and control switch solenoid valve (5) and drive shaft are linearly vented accordingly
Solenoid valve (7).
When brake pedal and triggering braking energy recovering function, entire car controller (29) control switch solenoid valve
(5) it is connected, the gas circuit between secondary air accumulator (3) port b and the linear exhaust solenoid valve of drive shaft (7) port a is connected, full-vehicle control
Device (29) the control linear exhaust solenoid valve of drive shaft (7) is in close state, and exhaust port c is not communicated with atmosphere；When stepping on
Brake pedal, but when not triggering braking energy recovering function, entire car controller (29) control switch solenoid valve (5) is off shape
State, the gas circuit between secondary air accumulator (3) port b and the linear exhaust solenoid valve of drive shaft (7) port a are not turned on, entire car controller
(29) the control linear exhaust solenoid valve of drive shaft (7) is in close state, and exhaust port c is not communicated with atmosphere.
When driver loosens the brake (1), entire car controller (29) control switch solenoid valve (5) disconnects secondary air accumulator
(3) air circuit connection between port b and the linear exhaust solenoid valve of drive shaft (7) port a, entire car controller (29) control drive shaft
Linear exhaust solenoid valve (7) is in the open state, and exhaust port c is communicated with atmosphere, and its aperture and brake pedal displacement pass
The proportional relationship of pedal displacement signal that sensor (44) is exported by signal wire.
Compared with prior art, the present invention passing through air accumulator (3) secondary in existing brake energy recovering system, switch electromagnetism
Valve (5), the linear exhaust solenoid valve of drive shaft (7), the first triple valve (8), drive shaft relay valve (9), the second triple valve (10), the right side
Drive wheel double-way check valve (11), right driving wheel brake pressure sensor (16), left driving wheel double-way check valve (27),
The components such as right non-driven wheel brake pressure sensor (40) and brake pedal displacement sensor (44), brake back each driving wheel
There are two road tools, and independent high-pressure air source and double back line structure can be by the higher gas source of air pressure when triggering Brake energy recovery
Brake chamber provides high pressure gas, to efficiently solve when continuously braking present in existing scheme, because bleed pressure is relatively low
Bring drives wheel coupling braking force response rate slow, and lags behind the critical issue of demand brake force.
Fig. 1 is the two-wheeled centralized driving electric vehicle brake power the present invention is based on double-way check valve and linear exhaust solenoid valve
The structural schematic diagram of recovery system.Wherein: 1, brake pedal；2, brake valve；3, secondary air accumulator；4, main air accumulator；5, switch electricity
Magnet valve；6, air compressor；7, the linear exhaust solenoid valve of drive shaft；8, the first triple valve；9, drive shaft relay valve；10, second
Triple valve；11, right driving wheel double-way check valve；12, right driving wheel drag；13, right driving wheel；14, right driving vehicle
Take turns wheel speed sensors；15, right driving wheel braking gas chamber；16, right driving wheel brake pressure sensor；17, right driving wheel
ABS solenoid valve；18, right jack shaft；19, driving motor and transmission device；20, drive motor controller；21, left driving wheel
ABS solenoid valve；22, left jack shaft；23, left driving wheel braking gas chamber；24, left driving wheel wheel speed sensors；25, left drive
Motor car wheel brake；26, left driving wheel；27, left driving wheel double-way check valve；28, battery management system；29, vehicle control
Device processed；30, brake monitor；31, nonpowered axle relay valve；
32, third triple valve；33, left non-driven wheel；34, left non-driven wheel drag；35, left non-driven wheel wheel speed passes
Sensor；36, left non-driven wheel braking gas chamber；37, left non-driven wheel ABS solenoid valve；38, right non-driven wheel ABS electromagnetism
Valve；39, right non-driven wheel braking gas chamber；40, right non-driven wheel brake pressure sensor；41, right non-driven wheel wheel speed
Sensor；42, right non-driven wheel drag；43, right non-driven wheel；44, brake pedal displacement sensor.
A specific embodiment of the invention is described below.
The present invention provides a kind of two-wheeled centralized driving brake of electric vehicle based on double-way check valve and linear exhaust solenoid valve
Energy recycling system referring to attached drawing and gives an actual example to the present invention to keep technical solution of the present invention and effect clearer, clear
It is further described；It should be appreciated that specific implementation described herein is not used to limit this hair only to explain the present invention
It is bright.
As shown in Figure 1, the two-wheeled centralized driving electric vehicle brake power based on double-way check valve and linear exhaust solenoid valve
Recovery system is by by brake pedal (1), brake valve (2), secondary air accumulator (3), main air accumulator (4), switch electromagnetic valve (5), air
Compressor (6), the linear exhaust solenoid valve of drive shaft (7), the first triple valve (8), drive shaft relay valve (9), the second triple valve
(10), right driving wheel double-way check valve (11), right driving wheel wheel speed sensors (14), right driving wheel braking gas chamber
(15), right driving wheel brake pressure sensor (16), right driving wheel ABS solenoid valve (17), driving motor and transmission device
(19), drive motor controller (20), left driving wheel ABS solenoid valve (21), left driving wheel braking gas chamber (23), left driving
Wheel wheel speed sensors (24), left driving wheel double-way check valve (27), battery management system (28), entire car controller (29),
Brake monitor (30), nonpowered axle relay valve (31), third triple valve (32), left non-driven wheel wheel speed sensors (35),
Left non-driven wheel braking gas chamber (36), left non-driven wheel ABS solenoid valve (37), right non-driven wheel ABS solenoid valve (38),
Right non-driven wheel braking gas chamber (39), right non-driven wheel brake pressure sensor (40), right non-driven wheel wheel speed sensing
Device (41), brake pedal displacement sensor (44) composition.
The air outlet b and main air accumulator (4) air inlet port a of air compressor (6) pass through air circuit connection, air compressor
(6) the air inlet port a of air outlet a and secondary air accumulator (3) pass through air circuit connection.
The air inlet port a of brake valve (2) is connected with the air outlet d of main air accumulator (4) by gas circuit, brake valve (2)
Air inlet port b is connected with the air outlet c of main air accumulator (4) by gas circuit, the air outlet c and nonpowered axle of brake valve (2)
The control port c of relay valve (31) is connected by gas circuit, the air outlet d of brake valve (2) and the control of drive shaft relay valve (9)
Port c is connected by gas circuit.
The air outlet b of secondary air accumulator (3) is connected by gas circuit with the air inlet port a of switch electromagnetic valve (5), and electromagnetism is switched
The air outlet b of valve (5) is connected with the air inlet port a of the linear exhaust solenoid valve of drive shaft (7) by gas circuit, drive shaft linear rows
The air outlet b of pneumoelectric magnet valve (7) is connected by gas circuit with the air inlet port a of the first triple valve (8), the first triple valve (8)
Air outlet b is connected by gas circuit with the air inlet port b of right driving wheel double-way check valve (11), and the first triple valve (8) goes out
Gas port c is connected by gas circuit with the air inlet port b of left driving wheel double-way check valve (27).
The port a of drive shaft relay valve (9) is connected with the air outlet e of main air accumulator (4) by gas circuit, drive shaft servo
The port b of valve (9) is connected by gas circuit with the port b of the second triple valve (10).
The air inlet port a phase that the port a of second triple valve (10) passes through gas circuit and right driving wheel double-way check valve (11)
Even, the air inlet that the air outlet c of right driving wheel double-way check valve (11) passes through gas circuit and right driving wheel ABS solenoid valve (17)
Port a is connected, and the air inlet port b of right driving wheel ABS solenoid valve (17) and right driving wheel braking gas chamber (15) pass through gas circuit
It is connected.
Right driving wheel brake pressure sensor (16) is installed on right driving wheel braking gas chamber (15).
The air inlet port a phase that the port c of second triple valve (10) passes through gas circuit and left driving wheel double-way check valve (27)
Even, the air inlet that the air outlet c of left driving wheel double-way check valve (27) passes through gas circuit and left driving wheel ABS solenoid valve (21)
Port a is connected, and the air inlet port b of left driving wheel ABS solenoid valve (21) passes through gas circuit and left driving wheel braking gas chamber (23)
It is connected.
The port a of nonpowered axle relay valve (31) is connected with the air outlet b of main air accumulator (4) by gas circuit, non-driven
The port b of axis relay valve (31) is connected by gas circuit with the port b of third triple valve (32), the port c of third triple valve (32)
It is connected by gas circuit with the air inlet port a of left non-driven wheel ABS solenoid valve (37), left non-driven wheel ABS solenoid valve (37)
Air inlet port b be connected by gas circuit with the non-driven wheel braking gas chamber (36) in a left side, the port a of third triple valve (32) passes through gas
Road is connected with the air inlet port a of right non-driven wheel ABS solenoid valve (38), the air inlet of right non-driven wheel ABS solenoid valve (38)
Port b is connected by gas circuit with right non-driven wheel braking gas chamber (39).
Right non-driven wheel brake pressure sensor (40) is installed on right non-driven wheel braking gas chamber (39).
Right driving wheel wheel speed sensors (14), left driving wheel wheel speed sensors (24), left non-driven wheel wheel speed pass
Sensor (35), right non-driven wheel wheel speed sensors (41) are connected by signal wire with brake monitor (30).
Right driving wheel ABS solenoid valve (17), left driving wheel ABS solenoid valve (21), left non-driven wheel ABS solenoid valve
(37), right non-driven wheel ABS solenoid valve (38) is connected by signal wire with brake monitor (30).
Switch electromagnetic valve (5), the linear exhaust solenoid valve of drive shaft (7), right driving wheel brake pressure sensor (16), the right side
Non-driven wheel brake pressure sensor (40) and brake pedal displacement sensor (44) pass through signal wire and entire car controller
(29) it is connected.
Drive motor controller (20), battery management system (28), entire car controller (29) and brake monitor (30) are logical
CAN bus is crossed to be connected.
When braking, the working principle of above-mentioned braking system is as follows.
In car running process, brake monitor (30) receives right driving wheel wheel speed sensors (14), left driving wheel
The wheel that wheel speed sensors (24), left non-driven wheel wheel speed sensors (35), right non-driven wheel wheel speed sensors (41) export
Fast signal.
Entire car controller (29) receives the speed signal exported by brake monitor (30) and vehicle acceleration signal, by making
The pedal displacement signal of dynamic pedal displacement sensor (44) output, by right non-driven wheel brake pressure sensor (40) output
Nonpowered axle braking pressure pressure value, the drive shaft braking pressure pressure of right driving wheel brake pressure sensor (16) output
Value, battery management system (28) allow maximum charging current by the battery that CAN bus exports, and drive motor controller (20) is logical
The maximum motor brake force that the driving motor and transmission device (19) for crossing CAN bus output can be provided.
Driving motor and transmission device (19) can be applied to the maximum electricity of right driving wheel (13) and left driving wheel (26)
Brake force is defeated by CAN bus according to vehicle speed, vehicle acceleration, battery management system (28) by entire car controller (29)
Battery out allows maximum charging current, and the driving motor and transmission that drive motor controller (20) is exported by CAN bus fill
The maximum motor brake force that (19) can be provided is set to determine.
Entire car controller (29) is based on speed, the brake pedal displacement biography that brake monitor (30) are exported by CAN bus
The battery permission maximum charge that pedal displacement signal, the battery management system (28) of sensor (44) output are exported by CAN bus
Electric current, the maximum that the driving motor and transmission device (19) that drive motor controller (20) is exported by CAN bus can be provided
Motor braking power, and judged whether to trigger braking energy recovering function: condition one: brake monitor according to following four conditions
(30) vehicle speed value exported is greater than the minimum speed threshold value for allowing Brake energy recovery；Condition two: brake pedal displacement sensor
(44) the pedal displacement signal exported is greater than the pedal displacement threshold value of triggering Brake energy recovery；Condition three: battery management system
(28) battery exported allows maximum charging current to be greater than 0；Condition four: the demand motor braking determined by entire car controller (29)
Power is greater than the minimum motor braking force threshold for allowing Brake energy recovery.
When meeting aforementioned four condition simultaneously, braking energy recovering function is triggered；When there is any one not to be able to satisfy,
Braking energy recovering function cannot then be triggered.
When brake pedal (1), and when triggering braking energy recovering function.
Entire car controller (29) is displaced according to speed, vehicle acceleration and brake pedal, determining left non-driven wheel (33),
Total brake force target value needed for right non-driven wheel (43), left driving wheel (26) and right driving wheel (13).
Entire car controller (29) total brake force target value according to needed for left driving wheel (26) and right driving wheel (13),
Battery management system (28) allows maximum charging current by the battery that CAN bus exports, and drive motor controller (20) passes through
The maximum motor brake force that the driving motor and transmission device (19) of CAN bus output can be provided determines left driving wheel (26)
With motor braking power target value needed for right driving wheel (13).
Entire car controller (29) is always braked according to the total brake force target value of left driving wheel (26) and right driving wheel (13)
Motor braking power target value needed for power target value, left driving wheel (26) and right driving wheel (13) determines left driving wheel
(26) and it is right driving wheel (13) air-pressure brake power target value.
Entire car controller (29) is exported required motor braking power target value to drive motor controller by CAN bus
(20), entire car controller (29) exports the air-pressure brake power target value of left driving wheel (26) and right driving wheel (13), by the right side
The driving air pressure brake force actual value that driving wheel brake pressure sensor (16) exports gives brake monitor (30).
When triggering braking energy recovering function, the principle for applying braking to left driving wheel (26) is as follows.
Entire car controller (29) control switch solenoid valve (5) is connected, and the high pressure gas in secondary air accumulator (3) successively passes through pair
The port a of the port b of air accumulator (3), the port a of switch electromagnetic valve (5) and the linear exhaust solenoid valve of port b, drive shaft (7) and
Port b, the port a of the first triple valve (8) and port c reach the port b of left driving wheel double-way check valve (27), in this process
In not to the linear exhaust solenoid valve of drive shaft (7) apply control.
High pressure gas in main air accumulator (4) is by the port d of main air accumulator (4), the port a and port d of brake valve (2)
Into the control port c of drive shaft relay valve (9), the port a and port b of drive shaft relay valve (9) is connected, main air accumulator
(4) high pressure gas in successively passes through the port a and port b, second of the port e of main air accumulator (4), drive shaft relay valve (9)
The port b and port c of triple valve (10) reach the port a of left driving wheel double-way check valve (27).
At this point, according to left driving wheel double-way check valve (27) port a gas pressure and left driving wheel double-way check valve
(27) size of port b gas pressure is divided into as follows to the case where left driving wheel braking gas chamber (23) offer air-pressure brake power
Two kinds.
When left driving wheel double-way check valve (27) port a gas pressure is greater than port b gas pressure, by main air accumulator
(4) high pressure gas is provided to left driving wheel braking gas chamber (23)；At this point, the high pressure gas in main air accumulator (4) successively passes through
The port e of main air accumulator (4), the port a and port b of drive shaft relay valve (9), the port b of the second triple valve (10) and port
C, the port a and port c of left driving wheel double-way check valve (27), the port a of left driving wheel ABS solenoid valve (21) and port
B enters left driving wheel braking gas chamber (23), so as to be applied by left driving wheel drag (25) to left driving wheel (26)
Brake force with air pressure capable of being increased.
When left driving wheel double-way check valve (27) port a gas pressure is less than port b gas pressure, by secondary air accumulator
(3) high pressure gas is provided to left driving wheel braking gas chamber (23)；At this point, the high pressure gas in secondary air accumulator (3) successively passes through
The port a of the port b of secondary air accumulator (3), the port a of switch electromagnetic valve (5) and the linear exhaust solenoid valve of port b, drive shaft (7)
With the port b and port c, a left side of port b, the port a of the first triple valve (8) and port c, left driving wheel double-way check valve (27)
The port a and port b of driving wheel ABS solenoid valve (21) enter left driving wheel braking gas chamber (23), so as to pass through left drive
Motor car wheel brake (25) applies air-pressure brake power to left driving wheel (26), in the process the linear exhaust solenoid valve of drive shaft
(7) exhaust port c is in close state, and is not communicated with atmosphere.
For the decoupling control for realizing left driving wheel (26) motor braking power and air-pressure brake power, left driving wheel can be passed through
ABS solenoid valve (21) adjusts the size of left driving wheel (26) air-pressure brake power, logical according to driving motor and transmission device (19)
The maximum motor brake force of left driving wheel (26) and total system of left driving wheel (26) can be applied to by crossing left jack shaft (22)
Relationship between power target value, the mode for applying brake force to left driving wheel (26) are divided into the following two kinds.
Mode one: when driving motor and transmission device (19) can be applied to left driving wheel by left jack shaft (22)
(26) when maximum motor brake force is greater than or equal to left driving wheel (26) total brake force target value, left drive wheel (26)
Air-pressure brake power target value is 0, at this point, brake monitor (30) passes through the left driving wheel ABS solenoid valve (21) of signal line traffic control
Port a is closed, and port b and port c are opened, and disconnects left driving wheel braking gas chamber (23) and left driving wheel double-way check valve
(27) air circuit connection between the c of port, the port that left driving wheel braking gas chamber (23) passes through left driving wheel ABS solenoid valve (21)
B and port c are communicated with atmosphere, give left driving wheel by left jack shaft (22) by driving motor and transmission device (19) at this time
(26) brake force needed for applying.
Mode two: when driving motor and transmission device (19) can be applied to left driving wheel by left jack shaft (22)
(26) maximum motor brake force be less than left driving wheel (26) always brake force target value when, driving motor and transmission device (19)
Apply maximum motor brake force to left driving wheel (26) by left jack shaft (22).
Left driving wheel (26) air-pressure brake power target value is by the total brake force target value of left driving wheel (26) and driving electricity
The difference that machine and transmission device (19) are applied to the left maximum motor brake force for driving wheel (26) by left jack shaft (22) is true
It is fixed, according to the relationship between left driving wheel (26) air-pressure brake power target value and air-pressure brake power actual value, to left driving vehicle
The case where wheel (26) application air-pressure brake power, is divided into following three kinds.
When left driving wheel (26) air-pressure brake power target value is greater than air-pressure brake power actual value, brake monitor (30)
It is connected by signal line traffic control left driving wheel ABS solenoid valve (21) port a and port b, port c is closed, and left driving wheel is double
High pressure gas at logical check valve (27) port c enters left drive by left driving wheel ABS solenoid valve (21) port a and port b
Motor car wheel brake chamber (23), to realize the increase of left driving wheel (26) actual pressure brake force.
When left driving wheel (26) air-pressure brake power target value is less than air-pressure brake power actual value, brake monitor (30)
It is closed by left driving wheel ABS solenoid valve (21) the port a of signal line traffic control, port b and port c conducting, left driving wheel system
The high pressure gas taken offence at room (23) is discharged into atmosphere by left driving wheel ABS solenoid valve (21) port b and port c, with realization
The reduction of left driving wheel (26) actual pressure brake force.
When left driving wheel (26) air-pressure brake power target value is equal to air-pressure brake power actual value, brake monitor (30)
It is closed by signal line traffic control left driving wheel ABS solenoid valve (21) port b and port c, left driving wheel braking gas chamber (23)
In air pressure remain unchanged, with realize it is left driving wheel (26) actual pressure brake force holding.
When brake pedal (1), but when not triggering braking energy recovering function.
Switch electromagnetic valve (5) is closed, and the gas circuit between secondary air accumulator (3) port b and the port a of the first triple valve (8) is disconnected
It opens, the port b of left driving wheel double-way check valve (27) is without high pressure gas.
High pressure gas in main air accumulator (4) is by the port d of main air accumulator (4), the port a and port d of brake valve (2)
Into the control port c of drive shaft relay valve (9), the port a and port b of drive shaft relay valve (9) is connected, main air accumulator
(4) high pressure gas in successively passes through the port a and port b, second of the port e of main air accumulator (4), drive shaft relay valve (9)
The port b and port c of triple valve (10) reach the port a of left driving wheel double-way check valve (27)；Left driving wheel bilateral list
It is closed to the port b of valve (27), port a and port c conducting, the high pressure gas in main air accumulator (4) successively passes through main air accumulator
(4) port a and port b, the port b and port c of the second triple valve (10), left driving of port e, drive shaft relay valve (9)
The port a and port c of wheel double-way check valve (27), the left port a and port b for driving wheel ABS solenoid valve (21) enter a left side
It drives wheel braking gas chamber (23), so as to apply air pressure system to left driving wheel (26) by left driving wheel drag (25)
Power.
It is divided into the releasing of the gentle compacting power of releasing of motor braking power, work to the releasing of left driving wheel (26) braking
Principle is as follows.
When driver loosens the brake (1), entire car controller (29) by drive motor controller (20) control by
Driving motor and transmission device (19) apply motor braking power to left driving wheel (26) by left jack shaft (22) and reduce, with
Release the motor braking power of left driving wheel.
When driver loosens the brake (1), brake valve (2) is closed, and drive shaft relay valve (9) disconnects main air accumulator
(4) air circuit connection between port e and the second triple valve (10) port b, switch electromagnetic valve (5) disconnect pair air accumulator (3) port b
With the air circuit connection between the linear exhaust solenoid valve of drive shaft (7) port a, entire car controller (29) is driven by signal line traffic control
Axis exhaust solenoid valve (7) is opened, and exhaust port c is connected with atmosphere, and controls the linear exhaust solenoid valve of drive shaft (7)
Aperture relationship proportional to pedal displacement, the mode for releasing left driving wheel (26) air-pressure brake power at this time are divided into two kinds.
When left driving wheel double-way check valve (27) port a is connected with port c, in left driving wheel braking gas chamber (23)
High pressure gas successively by left driving the air inlet port b and air inlet port a of wheel ABS solenoid valve (21), left driving wheel pair
The port b of logical check valve (27) port c and port a, the port c of the second triple valve (10) and port b, drive shaft relay valve (9)
Into drive shaft relay valve (9), atmosphere is discharged by drive shaft relay valve (9), so as to release the gas of left driving wheel (26)
Power is suppressed, left driving wheel ABS solenoid valve (21) is not applied control in the process.
When left driving wheel double-way check valve (27) port b is connected with port c, in left driving wheel braking gas chamber (23)
High pressure gas successively by left driving the air inlet port b and air inlet port a of wheel ABS solenoid valve (21), left driving wheel pair
Logical check valve (27) port c and port b, the port c of the first triple valve (8) and the linear exhaust solenoid valve of port a, drive shaft (7)
Port b enter the linear exhaust solenoid valve of drive shaft (7), the exhaust port c through the linear exhaust solenoid valve of drive shaft (7) is discharged into greatly
Gas, so as to release the air-pressure brake power of left driving wheel (26), in the process not to left driving wheel ABS solenoid valve (21)
Apply control.
When triggering braking energy recovering function, the principle for applying braking to right driving wheel (13) is as follows.
Entire car controller (29) control switch solenoid valve (5) is connected, and the high pressure gas in secondary air accumulator (3) successively passes through pair
The port a of the port b of air accumulator (3), the port a of switch electromagnetic valve (5) and the linear exhaust solenoid valve of port b, drive shaft (7) and
Port b, the port a of the first triple valve (8) and port b reach the port b of right driving wheel double-way check valve (11), in this process
In not to the linear exhaust solenoid valve of drive shaft (7) apply control.
High pressure gas in main air accumulator (4) is by the port d of main air accumulator (4), the port a and port d of brake valve (2)
Into the control port c of drive shaft relay valve (9), the port a and port b of drive shaft relay valve (9) is connected, main air accumulator
(4) high pressure gas in successively passes through the port a and port b, second of the port e of main air accumulator (4), drive shaft relay valve (9)
The port b and port a of triple valve (10) reach the port a of right driving wheel double-way check valve (11).
At this point, according to right driving wheel double-way check valve (11) port a gas pressure and right driving wheel double-way check valve
(11) size of port b gas pressure is divided into as follows to the case where right driving wheel braking gas chamber (15) offer air-pressure brake power
Two kinds.
When right driving wheel double-way check valve (11) port a gas pressure is greater than port b gas pressure, by main air accumulator
(4) high pressure gas is provided to right driving wheel braking gas chamber (15)；At this point, the high pressure gas in main air accumulator (4) successively passes through
The port e of main air accumulator (4), the port a and port b of drive shaft relay valve (9), the port b of the second triple valve (10) and port
A, the port a and port c of right driving wheel double-way check valve (11), the port a of right driving wheel ABS solenoid valve (17) and port
B enters right driving wheel braking gas chamber (15), so as to be applied by right driving wheel drag (12) to right driving wheel (13)
Brake force with air pressure capable of being increased.
When right driving wheel double-way check valve (11) port a gas pressure is less than port b gas pressure, by secondary air accumulator
(3) high pressure gas is provided to right driving wheel braking gas chamber (15)；At this point, the high pressure gas in secondary air accumulator (3) successively passes through
The port a of the port b of secondary air accumulator (3), the port a of switch electromagnetic valve (5) and the linear exhaust solenoid valve of port b, drive shaft (7)
With the port b and port c, the right side of port b, the port a of the first triple valve (8) and port b, right driving wheel double-way check valve (11)
The port a and port b of driving wheel ABS solenoid valve (17) enter right driving wheel braking gas chamber (15), so as to pass through right drive
Motor car wheel brake (12) applies air-pressure brake power to right driving wheel (13), in the process the linear exhaust solenoid valve of drive shaft
(7) exhaust port c is in close state, and is not communicated with atmosphere.
For the decoupling control for realizing right driving wheel (13) motor braking power and air-pressure brake power, right driving wheel can be passed through
ABS solenoid valve (17) adjusts the size of right driving wheel (13) air-pressure brake power, logical according to driving motor and transmission device (19)
The maximum motor brake force of right driving wheel (13) and total system of right driving wheel (13) can be applied to by crossing right jack shaft (18)
Relationship between power target value, the mode for applying brake force to right driving wheel (13) are divided into the following two kinds.
Mode one: when driving motor and transmission device (19) can be applied to right driving wheel by right jack shaft (18)
(13) when maximum motor brake force is greater than or equal to right driving wheel (13) total brake force target value, right drive wheel (13)
Air-pressure brake power target value is 0, at this point, brake monitor (30) passes through the right driving wheel ABS solenoid valve (17) of signal line traffic control
Port a is closed, and port b and port c are opened, and disconnects right driving wheel braking gas chamber (15) and right driving wheel double-way check valve
(11) air circuit connection between the c of port, the end that right driving wheel braking gas chamber (15) passes through right driving wheel ABS solenoid valve (17)
Mouth b and port c is communicated with atmosphere, gives right driving vehicle by right jack shaft (18) by driving motor and transmission device (19) at this time
Take turns brake force needed for (13) apply.
Mode two: when driving motor and transmission device (19) can be applied to right driving wheel by right jack shaft (18)
(13) maximum motor brake force be less than right driving wheel (13) always brake force target value when, driving motor and transmission device (19)
Apply maximum motor brake force to right driving wheel (13) by right jack shaft (18).
Right driving wheel (13) air-pressure brake power target value is by the total brake force target value of right driving wheel (13) and driving electricity
The difference that machine and transmission device (19) are applied to the right maximum motor brake force for driving wheel (13) by right jack shaft (18) is true
It is fixed, according to the relationship between right driving wheel (13) air-pressure brake power target value and air-pressure brake power actual value, to right driving vehicle
The case where wheel (13) application air-pressure brake power, is divided into following three kinds.
When right driving wheel (13) air-pressure brake power target value is greater than air-pressure brake power actual value, brake monitor (30)
It is connected by signal line traffic control right driving wheel ABS solenoid valve (17) port a and port b, port c is closed, and right driving wheel is double
High pressure gas at logical check valve (11) port c enters right drive by right driving wheel ABS solenoid valve (17) port a and port b
Motor car wheel brake chamber (15), to realize the increase of right driving wheel (13) actual pressure brake force.
When right driving wheel (13) air-pressure brake power target value is less than air-pressure brake power actual value, brake monitor (30)
It is closed by right driving wheel ABS solenoid valve (17) the port a of signal line traffic control, port b and port c conducting, right driving wheel system
The high pressure gas taken offence at room (15) is discharged into atmosphere by right driving wheel ABS solenoid valve (17) port b and port c, with realization
The reduction of right driving wheel (13) actual pressure brake force.
When right driving wheel (13) air-pressure brake power target value is equal to air-pressure brake power actual value, brake monitor (30)
It is closed by signal line traffic control right driving wheel ABS solenoid valve (17) port b and port c, right driving wheel braking gas chamber (15)
In air pressure remain unchanged, with realize it is right driving wheel (13) actual pressure brake force holding.
When brake pedal (1), but when not triggering braking energy recovering function.
Switch electromagnetic valve (5) is closed, and the gas circuit between secondary air accumulator (3) port b and the port a of the first triple valve (8) is disconnected
It opens, the port b of right driving wheel double-way check valve (11) is without high pressure gas.
High pressure gas in main air accumulator (4) is by the port d of main air accumulator (4), the port a and port d of brake valve (2)
Into the control port c of drive shaft relay valve (9), the port a and port b of drive shaft relay valve (9) is connected, main air accumulator
(4) high pressure gas in successively passes through the port a and port b, second of the port e of main air accumulator (4), drive shaft relay valve (9)
The port b and port a of triple valve (10) reach the port a of right driving wheel double-way check valve (11).
The port b of right driving wheel double-way check valve (11) is closed, port a and port c conducting, in main air accumulator (4)
High pressure gas successively passes through the port e of main air accumulator (4), the port a of drive shaft relay valve (9) and port b, the second triple valve
(10) port a and port c, the right driving wheel ABS solenoid valve of port b and port a, right driving wheel double-way check valve (11)
(17) port a and port b enters right driving wheel braking gas chamber (15), so as to be given by right driving wheel drag (12)
Right driving wheel (13) applies air-pressure brake power.
It is divided into the releasing of the gentle compacting power of releasing of motor braking power, work to the releasing of right driving wheel (13) braking
Principle is as follows.
When driver loosens the brake (1), entire car controller (29) by drive motor controller (20) control by
Driving motor and transmission device (19) are reduced by the motor braking power that right jack shaft (18) apply to right driving wheel (13),
To release the motor braking power of right driving wheel.
When driver loosens the brake (1), brake valve (2) is closed, and drive shaft relay valve (9) disconnects main air accumulator
(4) air circuit connection between port e and the second triple valve (10) port b, switch electromagnetic valve (5) disconnect pair air accumulator (3) port b
With the air circuit connection between the linear exhaust solenoid valve of drive shaft (7) port a, entire car controller (29) is driven by signal line traffic control
Axis exhaust solenoid valve (7) is opened, and exhaust port c is connected with atmosphere, and controls the linear exhaust solenoid valve of drive shaft (7)
Aperture relationship proportional to pedal displacement, the mode for releasing right driving wheel (13) air-pressure brake power at this time are divided into two kinds.
When right driving wheel double-way check valve (11) port a is connected with port c, in right driving wheel braking gas chamber (15)
High pressure gas successively by right driving the air inlet port b and air inlet port a of wheel ABS solenoid valve (17), right driving wheel pair
The port b of logical check valve (11) port c and port a, the port a of the second triple valve (10) and port b, drive shaft relay valve (9)
Into drive shaft relay valve (9), atmosphere is discharged by drive shaft relay valve (9), so as to release the gas of right driving wheel (13)
Power is suppressed, right driving wheel ABS solenoid valve (17) is not applied control in the process.
When right driving wheel double-way check valve (11) port b is connected with port c, in right driving wheel braking gas chamber (15)
High pressure gas successively by right driving the air inlet port b and air inlet port a of wheel ABS solenoid valve (17), right driving wheel pair
Logical check valve (11) port c and port b, the port b of the first triple valve (8) and the linear exhaust solenoid valve of port a, drive shaft (7)
Port b enter the linear exhaust solenoid valve of drive shaft (7), the exhaust port c through the linear exhaust solenoid valve of drive shaft (7) is discharged into greatly
Gas, so as to release the air-pressure brake power of right driving wheel (13), in the process not to right driving wheel ABS solenoid valve (17)
Apply control.
Working principle when applying air-pressure brake to left non-driven wheel (33) is as follows: when driver's brake pedal
(1) when, brake valve (2) is opened, and the high pressure gas in main air accumulator (4) is by the port c of main air accumulator (4), brake valve (2)
Port b and port c enters the control port c of nonpowered axle relay valve (31), makes port a and the end of nonpowered axle relay valve (31)
Mouth b conducting；High pressure gas in main air accumulator (4) successively passes through the port b of main air accumulator (4), nonpowered axle relay valve (31)
Port a and port b, the port b of third triple valve (32) and port c, left non-driven wheel ABS solenoid valve (37) port a
Enter left non-driven wheel braking gas chamber (36) with port b, by left non-driven wheel drag (34) to left non-driven wheel
(33) apply air-pressure brake power.
Based on the target value and air-pressure brake power of the non-driven air pressure brake force in a left side determined by entire car controller (29)
Relationship between actual value is divided into following three kinds of situations to the control of left non-driven wheel (33) air-pressure brake power.
When left non-driven wheel (33) air-pressure brake power target value is greater than air-pressure brake power actual value, brake monitor
(30) by left non-driven wheel ABS solenoid valve (37) the port a and port b conducting of signal line traffic control, port c is closed, and the three or three
High pressure gas at port valve (32) port c enters left non-drive by left non-driven wheel ABS solenoid valve (37) port a and port b
Motor car wheel brake chamber (36), to realize the increase of left non-driven wheel (33) actual pressure brake force.
When left non-driven wheel (33) air-pressure brake power target value is less than air-pressure brake power actual value, brake monitor
(30) it is closed by left non-driven wheel ABS solenoid valve (37) the port a of signal line traffic control, port b and port c conducting, left non-drive
High pressure gas at motor car wheel brake chamber (36) is discharged into greatly by left non-driven wheel ABS solenoid valve (37) port b and port c
Gas, to realize the reduction of left non-driven wheel (33) actual pressure brake force.
When left non-driven wheel (33) air-pressure brake power target value is equal to air-pressure brake power actual value, brake monitor
(30) it is closed by left non-driven wheel ABS solenoid valve (37) the port b and port c of signal line traffic control, left non-driven wheel braking
Air pressure in gas chamber (36) remains unchanged, to realize the holding of left non-driven wheel (33) actual pressure brake force.
The working principle for releasing air-pressure brake to left non-driven wheel (33) is as follows: when driver loosens the brake (1)
When, brake valve (2) is closed, and nonpowered axle relay valve (31) disconnects main air accumulator (4) port b and third triple valve (32) port b
Between air circuit connection, the high pressure gas in left non-driven wheel braking gas chamber (36) passes sequentially through left non-driven wheel ABS electricity
The port b and port a of magnet valve (37), the port c and port b of third triple valve (32) enter nonpowered axle relay valve (31), warp
Nonpowered axle relay valve (31) is discharged into atmosphere, to release the air-pressure brake power of left non-driven wheel (33), in the process not
Control is applied to left non-driven wheel ABS solenoid valve (37).
Working principle when applying air-pressure brake to right non-driven wheel (43) is as follows: when driver's brake pedal
(1) when, brake valve (2) is opened, and the high pressure gas in main air accumulator (4) is by the port c of main air accumulator (4), brake valve (2)
Port b and port c enters the control port c of nonpowered axle relay valve (31), makes port a and the end of nonpowered axle relay valve (31)
Mouth b conducting；High pressure gas in main air accumulator (4) successively passes through the port b of main air accumulator (4), nonpowered axle relay valve (31)
Port a and port b, the port b of third triple valve (32) and port a, right non-driven wheel ABS solenoid valve (38) port a
Enter right non-driven wheel braking gas chamber (39) with port b, by right non-driven wheel drag (42) to right non-driven wheel
(43) apply air-pressure brake power.
Based on the target value and air-pressure brake power of the non-driven air pressure brake force in the right side determined by entire car controller (29)
Relationship between actual value is divided into following three kinds of situations to the control of right non-driven wheel (43) air-pressure brake power.
When right non-driven wheel (43) air-pressure brake power target value is greater than air-pressure brake power actual value, brake monitor
(30) by right non-driven wheel ABS solenoid valve (38) the port a and port b conducting of signal line traffic control, port c is closed, and the three or three
High pressure gas at port valve (32) port a enters right non-drive by right non-driven wheel ABS solenoid valve (38) port a and port b
Motor car wheel brake chamber (39), to realize the increase of right non-driven wheel (43) actual pressure brake force.
When right non-driven wheel (43) air-pressure brake power target value is less than air-pressure brake power actual value, brake monitor
(30) it is closed by right non-driven wheel ABS solenoid valve (38) the port a of signal line traffic control, port b and port c conducting, right non-drive
High pressure gas at motor car wheel brake chamber (39) is discharged into greatly by right non-driven wheel ABS solenoid valve (38) port b and port c
Gas, to realize the reduction of right non-driven wheel (43) actual pressure brake force.
When right non-driven wheel (43) air-pressure brake power target value is equal to air-pressure brake power actual value, brake monitor
(30) it is closed by right non-driven wheel ABS solenoid valve (38) the port b and port c of signal line traffic control, right non-driven wheel braking
Air pressure in gas chamber (39) remains unchanged, to realize the holding of right non-driven wheel (43) actual pressure brake force.
The working principle for releasing air-pressure brake to right non-driven wheel (43) is as follows: when driver loosens the brake (1)
When, brake valve (2) is closed, and nonpowered axle relay valve (31) disconnects main air accumulator (4) port b and third triple valve (32) port b
Between air circuit connection, the high pressure gas in right non-driven wheel braking gas chamber (39) passes sequentially through right non-driven wheel ABS electricity
The port b and port a of magnet valve (38), the port a and port b of third triple valve (32) enter nonpowered axle relay valve (31), warp
Nonpowered axle relay valve (31) is discharged into atmosphere, to release the air-pressure brake power of right non-driven wheel (43), in the process not
Control is applied to right non-driven wheel ABS solenoid valve (38).
To the two-wheeled centralized driving brake energy recovering system of electric vehicle based on double-way check valve and linear exhaust solenoid valve
Middle switch electromagnetic valve (5), the linear exhaust solenoid valve of drive shaft (7), right driving wheel double-way check valve (11), left driving wheel are double
The work characteristics of logical check valve (27) is described below.
When the non-brake pedal of driver (1), switch electromagnetic valve (5) is in an off state, and drive shaft is linearly vented
Without high pressure gas at the port a of solenoid valve (7)；Braking energy recovering function is not triggered when driver's brake pedal (1) but
When, switch electromagnetic valve (5) is in an off state, without high pressure gas at the port a of the linear exhaust solenoid valve of drive shaft (7)；When driving
When the person's of sailing brake pedal (1) and triggering braking energy recovering function, switch electromagnetic valve (5) is in the conductive state, drive shaft
There is high pressure gas at the port a of linear exhaust solenoid valve (7).
There are three ports for the linear exhaust solenoid valve of drive shaft (7) tool: port a, port b and exhaust port c, port a and end
Mouth b is connected with braking gas circuit, is in normal open state, and exhaust port c is not connected with braking gas circuit, is stepping on electronic brake pedal
When, exhaust port c is in close state, and is not connected with atmosphere；When unclamping electronic brake pedal, exhaust port c, which is in, to be opened
State is connected with atmosphere, aperture relationship proportional to pedal displacement.
There are three ports: air inlet port a, air inlet port b and air outlet c for right driving wheel double-way check valve (11) tool,
When work, the big port conducting of input air pressure, the small port shutdown of input air pressure, i.e., when the air pressure of air inlet port a is greater than air inlet
When the air pressure of port b, gas is flowed into from air inlet port a, is flowed out from air outlet c, air inlet port b shutdown；When air inlet port a's
When air pressure is less than the air pressure of air inlet port b, gas is flowed into from air inlet port b, is flowed out from air outlet c, air inlet port a shutdown.
There are three ports: air inlet port a, air inlet port b and air outlet c for left driving wheel double-way check valve (27) tool,
When work, the big port conducting of input air pressure, the small port shutdown of input air pressure, i.e., when the air pressure of air inlet port a is greater than air inlet
When the air pressure of port b, gas is flowed into from air inlet port a, is flowed out from air outlet c, air inlet port b shutdown；When air inlet port a's
When air pressure is less than the air pressure of air inlet port b, gas is flowed into from air inlet port b, is flowed out from air outlet c, air inlet port a shutdown.
By above-mentioned discussion it is found that by air accumulator (3) secondary in existing brake energy recovering system, switch electromagnetic valve (5),
The linear exhaust solenoid valve of drive shaft (7), the first triple valve (8), drive shaft relay valve (9), the second triple valve (10), right driving vehicle
Take turns double-way check valve (11), right driving wheel brake pressure sensor (16), left driving wheel double-way check valve (27), right non-drive
The components such as motor car wheel brake-pressure sensor (40) and brake pedal displacement sensor (44), have each driving wheel brake circuit
Two independent high-pressure air sources and double back line structure, when driver's brake pedal (1) and without triggering Brake energy recovery
When function, high pressure gas needed for right driving wheel (13) and left driving wheel (26) is provided by main air accumulator (4)；When driver steps on
When lower brake pedal (1) and triggering braking energy recovering function, high pressure needed for right driving wheel (13) and left driving wheel (26)
Gas is provided by the big person of air pressure in main air accumulator (4) and secondary air accumulator (3), so as to effectively solve present in existing scheme
When continuous braking, because the relatively low bring driving wheel coupling braking force response rate of bleed pressure is slow, and demand brake force is lagged behind
Critical issue.
Claims (2)
1. the two-wheeled centralized driving brake energy recovering system of electric vehicle based on double-way check valve and linear exhaust solenoid valve, special
Sign is:
By brake pedal (1), brake valve (2), secondary air accumulator (3), main air accumulator (4), switch electromagnetic valve (5), air compressor
(6), the linear exhaust solenoid valve of drive shaft (7), the first triple valve (8), drive shaft relay valve (9), the second triple valve (10), right drive
Motor car wheel double-way check valve (11), right driving wheel wheel speed sensors (14), right driving wheel braking gas chamber (15), right driving vehicle
Take turns brake-pressure sensor (16), right driving wheel ABS solenoid valve (17), driving motor and transmission device (19), driving motor
Controller (20), left driving wheel ABS solenoid valve (21), left driving wheel braking gas chamber (23), left driving wheel wheel speed sensing
Device (24), left driving wheel double-way check valve (27), battery management system (28), entire car controller (29), brake monitor
(30), nonpowered axle relay valve (31), third triple valve (32), left non-driven wheel wheel speed sensors (35), left non-driven vehicle
Take turns brake chamber (36), left non-driven wheel ABS solenoid valve (37), right non-driven wheel ABS solenoid valve (38), right non-driven vehicle
Take turns brake chamber (39), right non-driven wheel brake pressure sensor (40), right non-driven wheel wheel speed sensors (41), braking
Pedal displacement sensor (44) composition；
The air outlet b and main air accumulator (4) air inlet port a of air compressor (6) pass through air circuit connection, air compressor (6)
Air outlet a and the air inlet port a of secondary air accumulator (3) pass through air circuit connection；
The air inlet port a of brake valve (2) is connected with the air outlet d of main air accumulator (4) by gas circuit, the air inlet of brake valve (2)
Port b is connected with the air outlet c of main air accumulator (4) by gas circuit, the air outlet c and nonpowered axle servo of brake valve (2)
The control port c of valve (31) is connected by gas circuit, the air outlet d of brake valve (2) and the control port of drive shaft relay valve (9)
C is connected by gas circuit；
The air outlet b of secondary air accumulator (3) is connected by gas circuit with the air inlet port a of switch electromagnetic valve (5), switch electromagnetic valve
(5) air outlet b is connected with the air inlet port a of the linear exhaust solenoid valve of drive shaft (7) by gas circuit, and drive shaft is linearly vented
The air outlet b of solenoid valve (7) is connected by gas circuit with the air inlet port a of the first triple valve (8), and the first triple valve (8) goes out
Gas port b is connected by gas circuit with the air inlet port b of right driving wheel double-way check valve (11), the outlet of the first triple valve (8)
Port c is connected by gas circuit with the air inlet port b of left driving wheel double-way check valve (27)；
The port a of drive shaft relay valve (9) is connected with the air outlet e of main air accumulator (4) by gas circuit, drive shaft relay valve
(9) port b is connected by gas circuit with the port b of the second triple valve (10)；
The port a of second triple valve (10) is connected by gas circuit with the air inlet port a of right driving wheel double-way check valve (11), right
The air outlet c of wheel double-way check valve (11) is driven to pass through the air inlet port a of gas circuit and right driving wheel ABS solenoid valve (17)
It is connected, the air inlet port b of right driving wheel ABS solenoid valve (17) is connected with right driving wheel braking gas chamber (15) by gas circuit；
Right driving wheel brake pressure sensor (16) is installed on right driving wheel braking gas chamber (15)；
The port c of second triple valve (10) is connected by gas circuit with the air inlet port a of left driving wheel double-way check valve (27), left
The air outlet c of wheel double-way check valve (27) is driven to pass through the air inlet port a of gas circuit and left driving wheel ABS solenoid valve (21)
It is connected, the air inlet port b of left driving wheel ABS solenoid valve (21) is connected by gas circuit with left driving wheel braking gas chamber (23)；
The port a of nonpowered axle relay valve (31) is connected with the air outlet b of main air accumulator (4) by gas circuit, nonpowered axle after
The port b of dynamic valve (31) is connected by gas circuit with the port b of third triple valve (32), and the port c of third triple valve (32) passes through
Gas circuit is connected with the air inlet port a of left non-driven wheel ABS solenoid valve (37), the non-driven wheel ABS solenoid valve (37) in a left side into
Gas port b is connected by gas circuit with left non-driven wheel braking gas chamber (36), the port a of third triple valve (32) pass through gas circuit and
The air inlet port a of right non-driven wheel ABS solenoid valve (38) is connected, the air inlet port b of right non-driven wheel ABS solenoid valve (38)
It is connected by gas circuit with right non-driven wheel braking gas chamber (39)；
Right non-driven wheel brake pressure sensor (40) is installed on right non-driven wheel braking gas chamber (39)；
Right driving wheel wheel speed sensors (14), left driving wheel wheel speed sensors (24), left non-driven wheel wheel speed sensors
(35), right non-driven wheel wheel speed sensors (41) are connected by signal wire with brake monitor (30)；
Right driving wheel ABS solenoid valve (17), left driving wheel ABS solenoid valve (21), left non-driven wheel ABS solenoid valve
(37), right non-driven wheel ABS solenoid valve (38) is connected by signal wire with brake monitor (30)；
Switch electromagnetic valve (5), the linear exhaust solenoid valve of drive shaft (7), right driving wheel brake pressure sensor (16), right non-drive
Motor car wheel brake-pressure sensor (40) and brake pedal displacement sensor (44) pass through signal wire and entire car controller (29) phase
Even；
Drive motor controller (20), battery management system (28), entire car controller (29) and brake monitor (30) pass through CAN
Bus is connected.
2. the two-wheeled centralized driving electric vehicle system according to claim 1 based on double-way check valve and linear exhaust solenoid valve
Energy recovery system, entire car controller (29) are based on speed, the brake pedal that brake monitor (30) are exported by CAN bus
Pedal displacement signal, the battery management system (28) of displacement sensor (44) output are allowed most by the battery that CAN bus exports
Big charging current, the driving motor and transmission device (19) that drive motor controller (20) is exported by CAN bus can be provided
Maximum motor brake force, judge whether to trigger braking energy recovering function, and control switch solenoid valve (5) and drive shaft accordingly
Linear exhaust solenoid valve (7), it is characterised in that:
When brake pedal and triggering braking energy recovering function, entire car controller (29) control switch solenoid valve (5) is led
Logical, the gas circuit between secondary air accumulator (3) port b and the linear exhaust solenoid valve of drive shaft (7) port a is connected, entire car controller
(29) the control linear exhaust solenoid valve of drive shaft (7) is in close state, and exhaust port c is not communicated with atmosphere；It is made when stepping on
When moving pedal, but not triggering braking energy recovering function, entire car controller (29) control switch solenoid valve (5) is off shape
State, the gas circuit between secondary air accumulator (3) port b and the linear exhaust solenoid valve of drive shaft (7) port a are not turned on, entire car controller
(29) the control linear exhaust solenoid valve of drive shaft (7) is in close state, and exhaust port c is not communicated with atmosphere；Work as driver
Loosen the brake (1) when, entire car controller (29) control switch solenoid valve (5) disconnects pair air accumulator (3) port b and drive shaft
Air circuit connection between linear exhaust solenoid valve (7) port a, entire car controller (29) control the linear exhaust solenoid valve of drive shaft
(7) in the open state, exhaust port c is communicated with atmosphere, and its aperture and brake pedal displacement sensor (44) pass through letter
The proportional relationship of pedal displacement signal of number line output.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910429555.0A CN110077382B (en) | 2019-05-22 | 2019-05-22 | Two-wheeled centralized driving electric vehicle braking energy recovery system based on two-way one-way valve and linear exhaust electromagnetic valve |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910429555.0A CN110077382B (en) | 2019-05-22 | 2019-05-22 | Two-wheeled centralized driving electric vehicle braking energy recovery system based on two-way one-way valve and linear exhaust electromagnetic valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110077382A true CN110077382A (en) | 2019-08-02 |
| CN110077382B CN110077382B (en) | 2022-01-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910429555.0A Active CN110077382B (en) | 2019-05-22 | 2019-05-22 | Two-wheeled centralized driving electric vehicle braking energy recovery system based on two-way one-way valve and linear exhaust electromagnetic valve |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110549870A (en) * | 2019-09-25 | 2019-12-10 | 清华大学 | Driving and braking integrated electric drive axle system and control method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204845912U (en) * | 2015-07-24 | 2015-12-09 | 合肥工业大学 | Motor bus safe auxiliary system that traveles |
| CN105313868A (en) * | 2015-11-03 | 2016-02-10 | 南京理工大学 | Service braking system based on intelligent hill-start assist |
| CN106802650A (en) * | 2017-03-28 | 2017-06-06 | 吉林大学 | Electric motor coach integration control hardware is in ring test platform and method of testing |
| US9718341B1 (en) * | 2016-09-28 | 2017-08-01 | Craig Antrobus | Pneumatic power and drag system |
| CN206598840U (en) * | 2017-03-08 | 2017-10-31 | 吉林大学 | A kind of Pneumatic braking system with active brake function |
-
2019
- 2019-05-22 CN CN201910429555.0A patent/CN110077382B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204845912U (en) * | 2015-07-24 | 2015-12-09 | 合肥工业大学 | Motor bus safe auxiliary system that traveles |
| CN105313868A (en) * | 2015-11-03 | 2016-02-10 | 南京理工大学 | Service braking system based on intelligent hill-start assist |
| US9718341B1 (en) * | 2016-09-28 | 2017-08-01 | Craig Antrobus | Pneumatic power and drag system |
| CN206598840U (en) * | 2017-03-08 | 2017-10-31 | 吉林大学 | A kind of Pneumatic braking system with active brake function |
| CN106802650A (en) * | 2017-03-28 | 2017-06-06 | 吉林大学 | Electric motor coach integration control hardware is in ring test platform and method of testing |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110549870A (en) * | 2019-09-25 | 2019-12-10 | 清华大学 | Driving and braking integrated electric drive axle system and control method |
| CN110549870B (en) * | 2019-09-25 | 2021-11-09 | 清华大学 | Driving and braking integrated electric drive axle system and control method |
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| Publication number | Publication date |
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| CN110077382B (en) | 2022-01-28 |
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