CN110077375A - Two-wheeled centralized driving brake energy recovering system of electric vehicle based on stacked unidirectional valve and linear exhaust solenoid valve - Google Patents
Two-wheeled centralized driving brake energy recovering system of electric vehicle based on stacked unidirectional valve and linear exhaust solenoid valve Download PDFInfo
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- CN110077375A CN110077375A CN201910429073.5A CN201910429073A CN110077375A CN 110077375 A CN110077375 A CN 110077375A CN 201910429073 A CN201910429073 A CN 201910429073A CN 110077375 A CN110077375 A CN 110077375A
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- solenoid valve
- brake
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Classifications
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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 stacked unidirectional valve and linear exhaust solenoid valve, belong to electric vehicle brake power recovery technology field, the program in the existing decoupling type brake energy recovering system based on air pressure ABS solenoid valve by increasing secondary air accumulator, switch electromagnetic valve, triple valve, left driving wheel stacked unidirectional valve, the linear exhaust solenoid valve of left driving wheel, right driving wheel stacked unidirectional valve, the components such as the linear exhaust solenoid valve of right driving wheel, 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 gas source pressure The relatively low bring driving wheel coupling braking force response rate of power is slow, and lags behind the critical issue of demand brake force.
Description
Technical field
The invention belongs to electric vehicle brake power recovery technology fields, and in particular to one kind is based on stacked unidirectional valve and line
The two-wheeled centralized driving brake energy recovering system of electric vehicle of property 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 stacked unidirectional valve and linear exhaust solenoid valve is provided
Recovery system, in the program, by increase in existing brake energy recovering system secondary air accumulator (3), switch electromagnetic valve (5),
First triple valve (7), drive shaft relay valve (8), the second triple valve (9), right driving wheel stacked unidirectional valve (10), right driving
The linear exhaust solenoid valve of wheel (11), right driving wheel brake pressure sensor (16), the linear exhaust solenoid valve of left driving wheel
(21), left driving wheel stacked unidirectional valve (28), right non-driven wheel brake pressure sensor (41) and brake pedal displacement
The components such as sensor (45), making each driving wheel brake circuit tool, there are two independent high-pressure air source and double back line structures, and work as
When triggering Brake energy recovery, the gas source that can select an air pressure high by control system provides for each driving wheel braking gas chamber
High pressure gas, so that the relatively low bring air pressure brake-force control speed of bleed pressure reduces when effectively solving continuous braking
Problem.
It is a kind of to be recycled based on the two-wheeled centralized driving electric vehicle brake power of stacked unidirectional 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 first triple valve (7), drive shaft relay valve (8), the second triple valve (9), right driving wheel stacked unidirectional valve (10),
The linear exhaust solenoid valve of right driving wheel (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), the linear exhaust solenoid valve of left driving wheel (21), left driving wheel ABS solenoid valve (22), left drive
Motor car wheel brake chamber (24), left driving wheel wheel speed sensors (25), left driving wheel stacked unidirectional valve (28), cell tube
Reason system (29), entire car controller (30), brake monitor (31), nonpowered axle relay valve (32), third triple valve (33), a left side
Non-driven wheel wheel speed sensors (36), left non-driven wheel braking gas chamber (37), left non-driven wheel ABS solenoid valve (38),
Right non-driven wheel ABS solenoid valve (39), right non-driven wheel braking gas chamber (40), right non-driven wheel brake pressure sensor
(41), right non-driven wheel wheel speed sensors (42), brake pedal displacement sensor (45) 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 (32) is connected by gas circuit, the air outlet d of brake valve (2) and the control of drive shaft relay valve (8)
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 first triple valve (7) by gas circuit, the outlet side of the first triple valve (7)
Mouth b is connected by gas circuit with the air inlet port b of right driving wheel stacked unidirectional valve (10), the outlet side of the first triple valve (7)
Mouth c is connected by gas circuit with the air inlet port b of left driving wheel stacked unidirectional valve (28).
The port a of drive shaft relay valve (8) is connected by gas circuit with the air outlet e of main air accumulator (4), drive shaft servo
The port b of valve (8) is connected by gas circuit with the port b of the second triple valve (9).
The port a of second triple valve (9) and the air inlet port a of right driving wheel stacked unidirectional valve (10) pass through gas circuit phase
Even, the air outlet c of right driving wheel stacked unidirectional valve (10) passes through gas circuit and the linear exhaust solenoid valve of right driving wheel
(11) port a is connected, the port b of the right driving linear exhaust solenoid valve of wheel (11) and right driving wheel ABS solenoid valve (17)
Air inlet port a by gas circuit be connected, it is right driving wheel ABS solenoid valve (17) air inlet port b and right driving wheel braking gas
Room (15) is connected 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 (9) and the air inlet port a of left driving wheel stacked unidirectional valve (28) pass through gas circuit phase
Even, the air outlet c of left driving wheel stacked unidirectional valve (28) passes through gas circuit and the linear exhaust solenoid valve of left driving wheel
(21) port a is connected, the port b of the left driving linear exhaust solenoid valve of wheel (21) and left driving wheel ABS solenoid valve (22)
Air inlet port a by gas circuit be connected, it is left driving wheel ABS solenoid valve (22) air inlet port b and left driving wheel braking gas
Room (24) is connected by gas circuit.
The port a of nonpowered axle relay valve (32) is connected with the air outlet b of main air accumulator (4) by gas circuit, non-driven
The port b of axis relay valve (32) is connected by gas circuit with the port b of third triple valve (33), the port c of third triple valve (33)
It is connected by gas circuit with the air inlet port a of left non-driven wheel ABS solenoid valve (38), left non-driven wheel ABS solenoid valve (38)
Air inlet port b be connected with left non-driven wheel braking gas chamber (37) by gas circuit, the port a of third triple valve (33) passes through gas
Road is connected with the air inlet port a of right non-driven wheel ABS solenoid valve (39), the air inlet of right non-driven wheel ABS solenoid valve (39)
Port b is connected with right non-driven wheel braking gas chamber (40) by gas circuit.
Right non-driven wheel brake pressure sensor (41) is installed on right non-driven wheel braking gas chamber (40).
Right driving wheel wheel speed sensors (14), left driving wheel wheel speed sensors (25), left non-driven wheel wheel speed pass
Sensor (36), right non-driven wheel wheel speed sensors (42) are connected by signal wire with brake monitor (31).
Right driving wheel ABS solenoid valve (17), left driving wheel ABS solenoid valve (22), left non-driven wheel ABS electromagnetism
Valve (38), right non-driven wheel ABS solenoid valve (39) are connected by signal wire with brake monitor (31).
Switch electromagnetic valve (5), the linear exhaust solenoid valve of right driving wheel (11), right driving wheel brake pressure sensor
(16), the linear exhaust solenoid valve of left driving wheel (21), right non-driven wheel brake pressure sensor (41) and brake pedal position
Displacement sensor (45) is connected by signal wire with entire car controller (30).
Drive motor controller (20), battery management system (29), entire car controller (30) and brake monitor (31) are logical
CAN bus is crossed to be connected.
Two-wheeled centralized driving brake energy recovering system of electric vehicle based on stacked unidirectional valve and linear exhaust solenoid valve,
Entire car controller (30) is based on speed, the brake pedal displacement sensor (45) that brake monitor (31) are exported by CAN bus
The battery permission maximum charging current that pedal displacement signal, the battery management system (29) of output are exported by CAN bus, driving
The maximum motor braking that the driving motor and transmission device (19) that electric machine controller (20) is exported by CAN bus can be provided
Power judges whether to trigger braking energy recovering function, and control switch solenoid valve (5), right driving wheel are linearly vented electricity accordingly
Magnet valve (11) and the linear exhaust solenoid valve of left driving wheel (21).
When brake pedal and triggering braking energy recovering function, entire car controller (30) control switch solenoid valve
(5) it is connected, the gas circuit between secondary air accumulator (3) port b and the first triple valve (7) port a is connected, entire car controller (30) control
It makes the linear exhaust solenoid valve of right driving wheel (11) and the linear exhaust solenoid valve of left driving wheel (21) is in close state, arrange
Gas port c is not communicated with atmosphere；When working as brake pedal, but not triggering braking energy recovering function, entire car controller (30)
Control switch solenoid valve (5) is in an off state, the gas circuit between secondary air accumulator (3) port b and the first triple valve (7) port a
It is not turned on, entire car controller (30) the control linear exhaust solenoid valve of right driving wheel (11) and left driving wheel are linearly vented electromagnetism
Valve (21) is in close state, and exhaust port c is not communicated with atmosphere.
When driver loosens the brake (1), entire car controller (30) control switch solenoid valve (5) disconnects secondary air accumulator
(3) air circuit connection between port b and the first triple valve (7) port a, entire car controller (30) control right driving wheel linear rows
Pneumoelectric magnet valve (11) and the linear exhaust solenoid valve of left driving wheel (21) are in the open state, and exhaust port c is communicated with atmosphere,
And the proportional relationship of the pedal displacement signal that is exported by signal wire of its aperture and brake pedal displacement sensor (45).
Compared with prior art, the present invention by increasing secondary air accumulator (3), switch in existing brake energy recovering system
Solenoid valve (5), the first triple valve (7), drive shaft relay valve (8), the second triple valve (9), right driving wheel stacked unidirectional valve
(10), the linear exhaust solenoid valve of right driving wheel (11), right driving wheel brake pressure sensor (16), left driving wheel are linear
Exhaust solenoid valve (21), left driving wheel stacked unidirectional valve (28), right non-driven wheel brake pressure sensor (41) and system
Components such as dynamic pedal displacement sensor (45), make left and right driving air pressure brake circuit all have two independent high pressure gas
Source and double back line structure can provide high pressure gas by the higher gas source of air pressure when triggering Brake energy recovery for brake chamber, from
And efficiently solve when continuously being braked present in existing scheme, because the relatively low bring driving wheel of bleed pressure couples brake force
Response speed is slow, and lags behind the critical issue of demand brake force.
Fig. 1 is the two-wheeled centralized driving brake of electric vehicle energy the present invention is based on stacked unidirectional valve and linear exhaust solenoid valve
Measure the structural schematic diagram of recovery system.Wherein: 1, brake pedal；2, brake valve；3, secondary air accumulator；4, main air accumulator；5, it switchs
Solenoid valve；6, air compressor；7, the first triple valve；8, drive shaft relay valve；9, the second triple valve；10, right driving wheel is folded
Add formula check valve；11, the linear exhaust solenoid valve of right driving wheel；12, right driving wheel drag；13, right driving wheel；14,
Right driving wheel wheel speed sensors；15, right driving wheel braking gas chamber；16, right driving wheel brake pressure sensor；17, right
Drive wheel ABS solenoid valve；18, right jack shaft；19, driving motor and transmission device；20, drive motor controller；21, left
Drive the linear exhaust solenoid valve of wheel；22, left driving wheel ABS solenoid valve；23, left jack shaft；24, left driving wheel braking
Gas chamber；25, left driving wheel wheel speed sensors；26, left driving wheel drag；27, left driving wheel；28, left driving wheel
Stacked unidirectional valve；29, battery management system；30, entire car controller；31, brake monitor；32, nonpowered axle relay valve；
33, third triple valve；34, left non-driven wheel；35, left non-driven wheel drag；36, left non-driven wheel wheel speed sensing
Device；37, left non-driven wheel braking gas chamber；38, left non-driven wheel ABS solenoid valve；39, right non-driven wheel ABS electromagnetism
Valve；40, right non-driven wheel braking gas chamber；41, right non-driven wheel brake pressure sensor；42, right non-driven wheel wheel speed
Sensor；43, right non-driven wheel drag；44, right non-driven wheel；45, brake pedal displacement sensor.
A specific embodiment of the invention is as follows.
The present invention provides a kind of two-wheeled centralized driving electric vehicle system based on stacked unidirectional valve and linear exhaust solenoid valve
Energy recovery system referring to attached drawing and gives an actual example to this hair to keep technical solution of the present invention and effect clearer, clear
Bright further description；It should be appreciated that specific implementation described herein is not used to limit this only to explain the present invention
Invention.
As shown in Figure 1, the two-wheeled centralized driving brake of electric vehicle energy based on stacked unidirectional valve and linear exhaust solenoid valve
Recovery system is measured by brake pedal (1), brake valve (2), secondary air accumulator (3), main air accumulator (4), switch electromagnetic valve (5), air
Compressor (6), the first triple valve (7), drive shaft relay valve (8), the second triple valve (9), right driving wheel stacked unidirectional valve
(10), the linear exhaust solenoid valve of right driving wheel (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), the linear exhaust solenoid valve of left driving wheel (21), left driving wheel ABS solenoid valve (22),
Left driving wheel braking gas chamber (24), left driving wheel wheel speed sensors (25), left driving wheel stacked unidirectional valve (28), electricity
Pond management system (29), entire car controller (30), brake monitor (31), nonpowered axle relay valve (32), third triple valve
(33), left non-driven wheel wheel speed sensors (36), left non-driven wheel braking gas chamber (37), left non-driven wheel ABS electromagnetism
Valve (38), right non-driven wheel ABS solenoid valve (39), right non-driven wheel braking gas chamber (40), right non-driven wheel braking pressure
Force snesor (41), right non-driven wheel wheel speed sensors (42), brake pedal displacement sensor (45) 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 (32) is connected by gas circuit, the air outlet d of brake valve (2) and the control of drive shaft relay valve (8)
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 first triple valve (7) by gas circuit, the outlet side of the first triple valve (7)
Mouth b is connected by gas circuit with the air inlet port b of right driving wheel stacked unidirectional valve (10), the outlet side of the first triple valve (7)
Mouth c is connected by gas circuit with the air inlet port b of left driving wheel stacked unidirectional valve (28).
The port a of drive shaft relay valve (8) is connected by gas circuit with the air outlet e of main air accumulator (4), drive shaft servo
The port b of valve (8) is connected by gas circuit with the port b of the second triple valve (9).
The port a of second triple valve (9) and the air inlet port a of right driving wheel stacked unidirectional valve (10) pass through gas circuit phase
Even, the air outlet c of right driving wheel stacked unidirectional valve (10) passes through gas circuit and the linear exhaust solenoid valve of right driving wheel
(11) port a is connected, the port b of the right driving linear exhaust solenoid valve of wheel (11) and right driving wheel ABS solenoid valve (17)
Air inlet port a by gas circuit be connected, it is right driving wheel ABS solenoid valve (17) air inlet port b and right driving wheel braking gas
Room (15) is connected 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 (9) and the air inlet port a of left driving wheel stacked unidirectional valve (28) pass through gas circuit phase
Even, the air outlet c of left driving wheel stacked unidirectional valve (28) passes through gas circuit and the linear exhaust solenoid valve of left driving wheel
(21) port a is connected, the port b of the left driving linear exhaust solenoid valve of wheel (21) and left driving wheel ABS solenoid valve (22)
Air inlet port a by gas circuit be connected, it is left driving wheel ABS solenoid valve (22) air inlet port b and left driving wheel braking gas
Room (24) is connected by gas circuit.
The port a of nonpowered axle relay valve (32) is connected with the air outlet b of main air accumulator (4) by gas circuit, non-driven
The port b of axis relay valve (32) is connected by gas circuit with the port b of third triple valve (33), the port c of third triple valve (33)
It is connected by gas circuit with the air inlet port a of left non-driven wheel ABS solenoid valve (38), left non-driven wheel ABS solenoid valve (38)
Air inlet port b be connected with left non-driven wheel braking gas chamber (37) by gas circuit, the port a of third triple valve (33) passes through gas
Road is connected with the air inlet port a of right non-driven wheel ABS solenoid valve (39), the air inlet of right non-driven wheel ABS solenoid valve (39)
Port b is connected with right non-driven wheel braking gas chamber (40) by gas circuit.
Right non-driven wheel brake pressure sensor (41) is installed on right non-driven wheel braking gas chamber (40).
Right driving wheel wheel speed sensors (14), left driving wheel wheel speed sensors (25), left non-driven wheel wheel speed pass
Sensor (36), right non-driven wheel wheel speed sensors (42) are connected by signal wire with brake monitor (31).
Right driving wheel ABS solenoid valve (17), left driving wheel ABS solenoid valve (22), left non-driven wheel ABS electromagnetism
Valve (38), right non-driven wheel ABS solenoid valve (39) are connected by signal wire with brake monitor (31).
Switch electromagnetic valve (5), the linear exhaust solenoid valve of right driving wheel (11), right driving wheel brake pressure sensor
(16), the linear exhaust solenoid valve of left driving wheel (21), right non-driven wheel brake pressure sensor (41) and brake pedal position
Displacement sensor (45) is connected by signal wire with entire car controller (30).
Drive motor controller (20), battery management system (29), entire car controller (30) and brake monitor (31) 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 (31) receives right driving wheel wheel speed sensors (14), left driving wheel
The wheel that wheel speed sensors (25), left non-driven wheel wheel speed sensors (36), right non-driven wheel wheel speed sensors (42) export
Fast signal.
Entire car controller (30) receives the speed signal exported by brake monitor (31) and vehicle acceleration signal, by making
The pedal displacement signal of dynamic pedal displacement sensor (45) output, by right non-driven wheel brake pressure sensor (41) 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 (29) allow maximum charging current, drive motor controller (20) by the battery that CAN bus exports
The maximum motor brake force that the driving motor and transmission device (19) exported by CAN bus 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 (27)
Brake force passes through CAN bus according to vehicle speed, vehicle acceleration, battery management system (29) by entire car controller (30)
The battery of output allows maximum charging current, the driving motor and transmission that drive motor controller (20) is exported by CAN bus
The maximum motor brake force that device (19) can be provided determines.
Entire car controller (30) is based on speed, the brake pedal displacement biography that brake monitor (31) are exported by CAN bus
The battery permission maximum charge that pedal displacement signal, the battery management system (29) of sensor (45) 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
(31) vehicle speed value exported is greater than the minimum speed threshold value for allowing Brake energy recovery；Condition two: brake pedal displacement sensor
(45) the pedal displacement signal exported is greater than the pedal displacement threshold value of triggering Brake energy recovery；Condition three: battery management system
(29) battery exported allows maximum charging current to be greater than 0；Condition four: the demand motor braking determined by entire car controller (30)
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 (30) is displaced according to speed, vehicle acceleration and brake pedal, determining left non-driven wheel (34),
Total brake force target value needed for right non-driven wheel (44), left driving wheel (27) and right driving wheel (13).
Entire car controller (30) total brake force target value according to needed for left driving wheel (27) and right driving wheel (13),
Battery management system (29) 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 (27)
With motor braking power target value needed for right driving wheel (13).
Entire car controller (30) is always braked according to the total brake force target value of left driving wheel (27) and right driving wheel (13)
Motor braking power target value needed for power target value, left driving wheel (27) and right driving wheel (13) determines left driving wheel
(27) and it is right driving wheel (13) air-pressure brake power target value.
Entire car controller (30) is exported required motor braking power target value to drive motor controller by CAN bus
(20), entire car controller (30) exports the air-pressure brake power target value of left driving wheel (27) 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 (31).
When triggering braking energy recovering function, the principle for applying braking to left driving wheel (27) is as follows.
Entire car controller (30) control switch solenoid valve (5) is connected, and the high pressure gas in secondary air accumulator (3) successively passes through pair
Port a and port the c arrival of the port b of air accumulator (3), the port a and port b of switch electromagnetic valve (5), the first triple valve (7)
The port b of left driving wheel stacked unidirectional valve (28).
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 (8), the port a and port b of drive shaft relay valve (8) 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 (8)
The port b and port c of triple valve (9) reach the port a of left driving wheel stacked unidirectional valve (28).
At this point, according to left driving wheel stacked unidirectional valve (28) port a gas pressure and left driving wheel superposing type list
To the size of valve (28) port b gas pressure, it is divided into the case where left driving wheel braking gas chamber (24) offer air-pressure brake power
The following two kinds.
When left driving wheel stacked unidirectional valve (28) port a gas pressure is greater than port b gas pressure, by main gas storage
Tank (4) provides high pressure gas to left driving wheel braking gas chamber (24)；At this point, the high pressure gas in main air accumulator (4) successively passes through
Cross the port e of main air accumulator (4), the port a and port b of drive shaft relay valve (8), the port b of the second triple valve (9) and port
C, the port a and port c of left driving wheel stacked unidirectional valve (28), the left port for driving the linear exhaust solenoid valve of wheel (21)
A and port b, the left port a and port b for driving wheel ABS solenoid valve (22) enter left driving wheel braking gas chamber (24), thus
Air-pressure brake power can be applied to left driving wheel (27) by left driving wheel drag (26), in the process left driving wheel
Linear exhaust solenoid valve (21) exhaust port c is in close state, and is not communicated with atmosphere.
When left driving wheel stacked unidirectional valve (28) port a gas pressure is less than port b gas pressure, by secondary gas storage
Tank (3) provides high pressure gas to left driving wheel braking gas chamber (24)；At this point, the high pressure gas in secondary air accumulator (3) successively passes through
Cross the port b of secondary air accumulator (3), the port a and port b of switch electromagnetic valve (5), the first triple valve (7) port a and port c,
The port b and port c of left driving wheel stacked unidirectional valve (28), the left port a for driving the linear exhaust solenoid valve of wheel (21)
Enter left driving wheel braking gas chamber (24) with the port a and port b of port b, left driving wheel ABS solenoid valve (22), thus
Air-pressure brake power can be applied to left driving wheel (27) by left driving wheel drag (26), in the process left driving wheel
Linear exhaust solenoid valve (21) exhaust port c is in close state, and is not communicated with atmosphere.
For the decoupling control for realizing left driving wheel (27) motor braking power and air-pressure brake power, left driving wheel can be passed through
ABS solenoid valve (22) adjusts the size of left driving wheel (27) air-pressure brake power, logical according to driving motor and transmission device (19)
The maximum motor brake force of left driving wheel (27) and total system of left driving wheel (27) can be applied to by crossing left jack shaft (23)
Relationship between power target value, the mode for applying brake force to left driving wheel (27) 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 (23)
(27) maximum motor brake force be greater than or equal to left driving wheel (27) always brake force target value when, left driving wheel (27)
Air-pressure brake power target value be 0, at this point, brake monitor (31) pass through the left driving wheel ABS solenoid valve of signal line traffic control
(22) port a is closed, and port b and port c are opened, and is disconnected left driving wheel braking gas chamber (24) and is linearly vented with left driving wheel
Air circuit connection between solenoid valve (21) port b, left driving wheel braking gas chamber (24) pass through left driving wheel ABS solenoid valve
(22) port b and port c is communicated with atmosphere, is given at this time by driving motor and transmission device (19) by left jack shaft (23)
Brake force needed for left driving wheel (27) applies.
Mode two: when driving motor and transmission device (19) can be applied to left driving wheel by left jack shaft (23)
(27) maximum motor brake force be less than left driving wheel (27) always brake force target value when, driving motor and transmission device
(19) apply maximum motor brake force to left driving wheel (27) by left jack shaft (23).
Left driving wheel (27) air-pressure brake power target value is by the total brake force target value of left driving wheel (27) and driving electricity
The difference that machine and transmission device (19) are applied to the left maximum motor brake force for driving wheel (27) by left jack shaft (23) is true
It is fixed, according to the relationship between left driving wheel (27) air-pressure brake power target value and air-pressure brake power actual value, to left driving vehicle
The case where wheel (27) application air-pressure brake power, is divided into following three kinds.
When left driving wheel (27) air-pressure brake power target value is greater than air-pressure brake power actual value, brake monitor (31)
It is connected by signal line traffic control left driving wheel ABS solenoid valve (22) port a and port b, port c is closed, left driving wheel line
Property exhaust solenoid valve (21) port b at high pressure gas by left driving wheel ABS solenoid valve (22) port a and port b entrance
Left driving wheel braking gas chamber (24), to realize the increase of left driving wheel (27) actual pressure brake force.
When left driving wheel (27) air-pressure brake power target value is less than air-pressure brake power actual value, brake monitor (31)
It is closed by left driving wheel ABS solenoid valve (22) 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 (24) is discharged into atmosphere by left driving wheel ABS solenoid valve (22) port b and port c, with realization
The reduction of left driving wheel (27) actual pressure brake force.
When left driving wheel (27) air-pressure brake power target value is equal to air-pressure brake power actual value, brake monitor (31)
It is closed by signal line traffic control left driving wheel ABS solenoid valve (22) port b and port c, left driving wheel braking gas chamber (24)
In air pressure remain unchanged, with realize it is left driving wheel (27) 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 (7) is disconnected
It opens, the port b of left driving wheel stacked unidirectional valve (28) 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 (8), the port a and port b of drive shaft relay valve (8) 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 (8)
The port b and port c of triple valve (9) reach the port a of left driving wheel stacked unidirectional valve (28).
The port b of left driving wheel stacked unidirectional valve (28) is closed, port a and port c conducting, in main air accumulator (4)
High pressure gas successively pass through the port e of main air accumulator (4), the port a of drive shaft relay valve (8) and port b, the second triple valve
(9) port a and port c, the left driving wheel of port b and port c, left driving wheel stacked unidirectional valve (28) are linearly vented
The port a and port b of solenoid valve (21), the left port a and port b for driving wheel ABS solenoid valve (22) enter left driving wheel
Brake chamber (24), so as to apply air-pressure brake power to left driving wheel (27) by left driving wheel drag (26),
Left driving wheel linear exhaust solenoid valve (21) exhaust port c is in close state during this, is not communicated with atmosphere.
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 (27) braking
Principle is as follows.
When driver loosens the brake (1), entire car controller (30) by drive motor controller (20) control by
Driving motor and transmission device (19) apply motor braking power to left driving wheel (27) by left jack shaft (23) 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 (8) disconnects main air accumulator
(4) air circuit connection between port e and the second triple valve (9) port b, switch electromagnetic valve (5) disconnect pair air accumulator (3) port b
With the air circuit connection between the first triple valve (7) port a, it is linear that entire car controller (30) passes through the left driving wheel of signal line traffic control
Exhaust solenoid valve (21) is in the open state, and exhaust port c is communicated with atmosphere, the height in left driving wheel braking gas chamber (24)
It calms the anger body, by the port b and port a of left driving wheel ABS solenoid valve (22), passes through the linear exhaust solenoid valve of left driving wheel
(21) exhaust port c is discharged into atmosphere, to release the air-pressure brake power of left driving wheel (27), in the process full-vehicle control
The aperture of the left driving linear exhaust solenoid valve of wheel (21) of device (30) control and brake pedal displacement sensor (45) pass through signal
The proportional relationship of pedal displacement signal of line output, does not apply left driving wheel ABS solenoid valve (22) control in the process.
When triggering braking energy recovering function, the principle for applying braking to right driving wheel (13) is as follows.
Entire car controller (30) control switch solenoid valve (5) is connected, and the high pressure gas in secondary air accumulator (3) successively passes through pair
Port a and port the b arrival of the port b of air accumulator (3), the port a and port b of switch electromagnetic valve (5), the first triple valve (7)
The port b of right driving wheel stacked unidirectional valve (10).
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 (8), the port a and port b of drive shaft relay valve (8) 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 (8)
The port b and port a of triple valve (9) reach the port a of right driving wheel stacked unidirectional valve (10)；
At this point, according to right driving wheel stacked unidirectional valve (10) port a gas pressure and right driving wheel superposing type list
To the size of valve (10) port b gas pressure, it is divided into the case where right driving wheel braking gas chamber (15) offer air-pressure brake power
The following two kinds.
When right driving wheel stacked unidirectional valve (10) port a gas pressure is greater than port b gas pressure, by main gas storage
Tank (4) provides high pressure gas to right driving wheel braking gas chamber (15)；At this point, the high pressure gas in main air accumulator (4) successively passes through
Cross the port e of main air accumulator (4), the port a and port b of drive shaft relay valve (8), the port b of the second triple valve (9) and port
A, the port a and port c of right driving wheel stacked unidirectional valve (10), the right port for driving the linear exhaust solenoid valve of wheel (11)
A and port b, the right port a and port b for driving wheel ABS solenoid valve (17) enter right driving wheel braking gas chamber (15), thus
Air-pressure brake power can be applied to right driving wheel (13) by right driving wheel drag (12).
When right driving wheel stacked unidirectional valve (10) port a gas pressure is less than port b gas pressure, by secondary gas storage
Tank (3) provides high pressure gas to right driving wheel braking gas chamber (15)；At this point, the high pressure gas in secondary air accumulator (3) successively passes through
Cross the port b of secondary air accumulator (3), the port a and port b of switch electromagnetic valve (5), the first triple valve (7) port a and port b,
The port b and port c of right driving wheel stacked unidirectional valve (10), the right port a for driving the linear exhaust solenoid valve of wheel (11)
With port b, it is right driving wheel ABS solenoid valve (17) port a and port b, into right driving wheel braking gas chamber (15), thus
Air-pressure brake power can be applied to right driving wheel (13) by right driving wheel drag (12).
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 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) maximum motor brake force be greater than or equal to right driving wheel (13) always brake force target value when, right driving wheel (13)
Air-pressure brake power target value be 0, at this point, brake monitor (31) pass through the right driving wheel ABS solenoid valve of signal line traffic control
(17) port a is closed, and port b and port c are opened, and is disconnected right driving wheel braking gas chamber (15) and is linearly vented with right driving wheel
Air circuit connection between solenoid valve (11) port b, right driving wheel braking gas chamber (15) pass through right driving wheel ABS solenoid valve
(17) port b and port c is communicated with atmosphere, is given at this time by driving motor and transmission device (19) by right jack shaft (18)
Brake force needed for right driving wheel (13) applies.
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 (31)
It is connected by signal line traffic control right driving wheel ABS solenoid valve (17) port a and port b, port c is closed, right driving wheel line
Property exhaust solenoid valve (11) port b at high pressure gas by right driving wheel ABS solenoid valve (17) port a and port b entrance
Right driving wheel braking gas 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 (31)
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 (31)
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 (7) is disconnected
It opens, the port b of right driving wheel stacked unidirectional valve (10) 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 (8), the port a and port b of drive shaft relay valve (8) 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 (8)
The port b and port a of triple valve (9) reach the port a of right driving wheel stacked unidirectional valve (10).
The port b of right driving wheel stacked unidirectional valve (10) is closed, port a and port c conducting, in main air accumulator (4)
High pressure gas successively pass through the port e of main air accumulator (4), the port a of drive shaft relay valve (8) and port b, the second triple valve
(9) port a and port c, the right driving wheel of port b and port a, right driving wheel stacked unidirectional valve (10) are linearly vented
The port a and port b of solenoid valve (11), the right port a and port b for driving wheel ABS solenoid valve (17) enter right driving wheel
Brake chamber (15), to apply air-pressure brake power to right driving wheel (13) by right driving wheel drag (12).
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 (30) 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 (8) disconnects main air accumulator
(4) air circuit connection between port e and the second triple valve (9) port b, switch electromagnetic valve (5) disconnect pair air accumulator (3) port b
With the air circuit connection between the first triple valve (7) port a, it is linear that entire car controller (30) passes through the right driving wheel of signal line traffic control
Exhaust solenoid valve (11) is in the open state, and exhaust port c is communicated with atmosphere, the height in right driving wheel braking gas chamber (15)
It calms the anger body, by the port b and port a of right driving wheel ABS solenoid valve (17), passes through the linear exhaust solenoid valve of right driving wheel
(11) exhaust port c is discharged into atmosphere, to release the air-pressure brake power of right driving wheel (13), in the process full-vehicle control
The aperture of the right driving linear exhaust solenoid valve of wheel (11) of device (30) control and brake pedal displacement sensor (45) pass through signal
The proportional relationship of pedal displacement signal of line output, does not apply right driving wheel ABS solenoid valve (17) control in the process.
The working principle for applying air-pressure brake to left non-driven wheel (34) 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), the end of brake valve (2)
Mouth b and port c enters the control port c of nonpowered axle relay valve (32), makes port a and the end of nonpowered axle relay valve (32)
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 (32)
Port a and port b, the port b of third triple valve (33) and port c, left non-driven wheel ABS solenoid valve (38) port a
Enter left non-driven wheel braking gas chamber (37) with port b, by left non-driven wheel drag (35) to left non-driven wheel
(34) 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 (30)
Relationship between actual value is divided into following three kinds of situations to the control of left non-driven wheel (34) air-pressure brake power.
When left non-driven wheel (34) air-pressure brake power target value is greater than air-pressure brake power actual value, brake monitor
(31) by left 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 (33) port c enters left non-drive by left non-driven wheel ABS solenoid valve (38) port a and port b
Motor car wheel brake chamber (37), to realize the increase of left non-driven wheel (34) actual pressure brake force.
When left non-driven wheel (34) air-pressure brake power target value is less than air-pressure brake power actual value, brake monitor
(31) it is closed by left non-driven wheel ABS solenoid valve (38) 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 (37) is discharged into greatly by left non-driven wheel ABS solenoid valve (38) port b and port c
Gas, to realize the reduction of left non-driven wheel (34) actual pressure brake force.
When left non-driven wheel (34) air-pressure brake power target value is equal to air-pressure brake power actual value, brake monitor
(31) it is closed by left non-driven wheel ABS solenoid valve (38) the port b and port c of signal line traffic control, left non-driven wheel braking
Air pressure in gas chamber (37) remains unchanged, to realize the holding of left non-driven wheel (34) actual pressure brake force.
The working principle for releasing air-pressure brake to left non-driven wheel (34) is as follows: when driver loosens the brake (1)
When, brake valve (2) is closed, and nonpowered axle relay valve (32) disconnects main air accumulator (4) port b and third triple valve (33) port b
Between air circuit connection, the high pressure gas in left non-driven wheel braking gas chamber (37) passes sequentially through left non-driven wheel ABS electricity
The port b and port a of magnet valve (38), the port c and port b of third triple valve (33) enter nonpowered axle relay valve (32), warp
Nonpowered axle relay valve (32) is discharged into atmosphere, to release the air-pressure brake power of left non-driven wheel (34), in the process not
Control is applied to left non-driven wheel ABS solenoid valve (38).
The working principle for applying air-pressure brake to right non-driven wheel (44) 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), the end of brake valve (2)
Mouth b and port c enters the control port c of nonpowered axle relay valve (32), makes port a and the end of nonpowered axle relay valve (32)
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 (32)
Port a and port b, the port b of third triple valve (33) and port a, right non-driven wheel ABS solenoid valve (39) port a
Enter right non-driven wheel braking gas chamber (40) with port b, by right non-driven wheel drag (43) to right non-driven wheel
(44) 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 (30)
Relationship between actual value is divided into following three kinds of situations to the control of right non-driven wheel (44) air-pressure brake power.
When right non-driven wheel (44) air-pressure brake power target value is greater than air-pressure brake power actual value, brake monitor
(31) by right non-driven wheel ABS solenoid valve (39) 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 (33) port a enters right non-drive by right non-driven wheel ABS solenoid valve (39) port a and port b
Motor car wheel brake chamber (40), to realize the increase of right non-driven wheel (44) actual pressure brake force.
When right non-driven wheel (44) air-pressure brake power target value is less than air-pressure brake power actual value, brake monitor
(31) it is closed by right non-driven wheel ABS solenoid valve (39) 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 (40) is discharged into greatly by right non-driven wheel ABS solenoid valve (39) port b and port c
Gas, to realize the reduction of right non-driven wheel (44) actual pressure brake force.
When right non-driven wheel (44) air-pressure brake power target value is equal to air-pressure brake power actual value, brake monitor
(31) it is closed by right non-driven wheel ABS solenoid valve (39) the port b and port c of signal line traffic control, right non-driven wheel braking
Air pressure in gas chamber (40) remains unchanged, to realize the holding of right non-driven wheel (44) actual pressure brake force.
The working principle for releasing air-pressure brake to right non-driven wheel (44) is as follows: when driver loosens the brake (1)
When, brake valve (2) is closed, and nonpowered axle relay valve (32) disconnects main air accumulator (4) port b and third triple valve (33) port b
Between air circuit connection, the high pressure gas in right non-driven wheel braking gas chamber (40) passes sequentially through right non-driven wheel ABS electricity
The port b and port a of magnet valve (39), the port a and port b of third triple valve (33) enter nonpowered axle relay valve (32), warp
Nonpowered axle relay valve (32) is discharged into atmosphere, to release the air-pressure brake power of right non-driven wheel (44), in the process not
Control is applied to right non-driven wheel ABS solenoid valve (39).
System is recycled to the two-wheeled centralized driving electric vehicle brake power based on stacked unidirectional valve and linear exhaust solenoid valve
Switch electromagnetic valve (5), right driving wheel stacked unidirectional valve (10), left driving wheel stacked unidirectional valve (28), right drive in system
The linear exhaust solenoid valve of motor car wheel (11), the left work characteristics for driving the linear exhaust solenoid valve of wheel (21) are described below.
When the non-brake pedal of driver (1), switch electromagnetic valve (5) is in an off state, the first triple valve (7)
Port a at without high pressure gas；When driver's brake pedal (1) but when not triggering braking energy recovering function, switch electricity
Magnet valve (5) is in an off state, without high pressure gas at the port a of the first triple valve (7)；When driver's brake pedal (1)
And when triggering braking energy recovering function, switch electromagnetic valve (5) is in the conductive state, has height at the port a of the first triple valve (7)
It calms the anger body.
There are three ports: air inlet port a, air inlet port b and air outlet for right driving wheel stacked unidirectional valve (10) tool
C, gas can only be flowed into from the air inlet port a and air inlet port b of right driving wheel stacked unidirectional valve (10), from right driving wheel
The air outlet c of stacked unidirectional valve (10) flows out, so that controlling gas can only be from the first triple valve (7) or drive shaft relay valve
(8) right driving wheel braking gas chamber (15) is flowed to, cannot be reversely connected；When the air pressure of air inlet port a is greater than the gas of air inlet port b
When pressure, port a and port c conducting, port b shutdown；When the air pressure of air inlet port a is less than the air pressure of air inlet port b, port b
It is connected with port c, port a shutdown.
There are three ports: air inlet port a, air inlet port b and air outlet for left driving wheel stacked unidirectional valve (28) tool
C, gas can only be flowed into from the air inlet port a and air inlet port b of left driving wheel stacked unidirectional valve (28), from left driving wheel
The air outlet c of stacked unidirectional valve (28) flows out, so that controlling gas can only be from the first triple valve (7) or drive shaft relay valve
(8) left driving wheel braking gas chamber (24) is flowed to, cannot be reversely connected；When the air pressure of air inlet port a is greater than the gas of air inlet port b
When pressure, port a and port c conducting, port b shutdown；When the air pressure of air inlet port a is less than the air pressure of air inlet port b, port b
It is connected with port c, port a shutdown.
There are three ports for the linear exhaust solenoid valve of right driving wheel (11) tool: port a, port b and exhaust port c, port a
It is connected with port b with braking gas circuit, is in normal open state, port c is not connected with braking gas circuit, in brake pedal (1)
When, exhaust port c is in close state, and is not connected with atmosphere；When unclamping electronic brake pedal, port c is in the open state,
It is connected with atmosphere, aperture relationship proportional to the pedal displacement of brake pedal (1).
There are three ports for the linear exhaust solenoid valve of left driving wheel (21) tool: port a, port b and exhaust port c, port a
It is connected with port b with braking gas circuit, is in normal open state, port c is not connected with braking gas circuit, in brake pedal (1)
When, exhaust port c is in close state, and is not connected with atmosphere；When unclamping electronic brake pedal, port c is in the open state,
It is connected with atmosphere, aperture relationship proportional to the pedal displacement of brake pedal (1).
By above-mentioned discussion it is found that by increasing secondary air accumulator (3), switch electromagnetic valve in existing brake energy recovering system
(5), the first triple valve (7), drive shaft relay valve (8), the second triple valve (9), right driving wheel stacked unidirectional valve (10),
The linear exhaust solenoid valve of right driving wheel (11), right driving wheel brake pressure sensor (16), left driving wheel are linearly vented
Solenoid valve (21), left driving wheel stacked unidirectional valve (28), right non-driven wheel brake pressure sensor (41) and braking are stepped on
The components such as plate displacement sensor (45), make left and right driving air pressure brake circuit all have two independent high-pressure air sources and
Double back line structure, when driver's brake pedal (1) and no triggering braking energy recovering function, left driving wheel (27)
It is provided with high pressure gas needed for right driving wheel (13) by main air accumulator (4)；When driver's brake pedal (1) and triggering system
When energy recycles function, high pressure gas needed for left driving wheel (27) and right driving wheel (13) is by main air accumulator (4) and pair
The big person of air pressure in air accumulator (3) provides, when so as to effectively solve continuously to brake present in existing scheme, because of bleed pressure
Relatively low bring driving wheel coupling braking force response rate is slow, and lags behind the critical issue of demand brake force.
Claims (2)
1. a kind of recycled based on the two-wheeled centralized driving electric vehicle brake power of stacked unidirectional valve and linear exhaust solenoid valve is
System, it is characterised in that:
By brake pedal (1), brake valve (2), secondary air accumulator (3), main air accumulator (4), switch electromagnetic valve (5), air compressor
(6), the first triple valve (7), drive shaft relay valve (8), the second triple valve (9), right driving wheel stacked unidirectional valve (10), the right side
Drive the linear exhaust solenoid valve of wheel (11), right driving wheel wheel speed sensors (14), right driving wheel braking gas chamber (15), the right side
It drives wheel brake pressure sensor (16), right driving wheel ABS solenoid valve (17), driving motor and transmission device (19), drive
Dynamic electric machine controller (20), the linear exhaust solenoid valve of left driving wheel (21), left driving wheel ABS solenoid valve (22), left driving
Wheel braking gas chamber (24), left driving wheel wheel speed sensors (25), left driving wheel stacked unidirectional valve (28), battery management
System (29), entire car controller (30), brake monitor (31), nonpowered axle relay valve (32), third triple valve (33), Zuo Fei
Drive wheel wheel speed sensors (36), left non-driven wheel braking gas chamber (37), left non-driven wheel ABS solenoid valve (38), the right side
Non-driven wheel ABS solenoid valve (39), right non-driven wheel braking gas chamber (40), right non-driven wheel brake pressure sensor
(41), right non-driven wheel wheel speed sensors (42), brake pedal displacement sensor (45) 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 (32) is connected by gas circuit, the air outlet d of brake valve (2) and the control port of drive shaft relay valve (8)
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 first triple valve (7) by gas circuit, the air outlet b of the first triple valve (7)
It is connected by gas circuit with the air inlet port b of right driving wheel stacked unidirectional valve (10), the air outlet c of the first triple valve (7)
It is connected by gas circuit with the air inlet port b of left driving wheel stacked unidirectional valve (28)；
The port a of drive shaft relay valve (8) is connected by gas circuit with the air outlet e of main air accumulator (4), drive shaft relay valve
(8) port b is connected by gas circuit with the port b of the second triple valve (9)；
The port a of second triple valve (9) is connected with the air inlet port a of right driving wheel stacked unidirectional valve (10) by gas circuit,
The air outlet c of right driving wheel stacked unidirectional valve (10) passes through gas circuit and the right driving linear exhaust solenoid valve of wheel (11)
Port a is connected, the air inlet of the port b of the right driving linear exhaust solenoid valve of wheel (11) and right driving wheel ABS solenoid valve (17)
Port a is connected by gas circuit, the air inlet port b of right driving wheel ABS solenoid valve (17) and right driving wheel braking gas chamber (15)
It is connected 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 (9) is connected with the air inlet port a of left driving wheel stacked unidirectional valve (28) by gas circuit,
The air outlet c of left driving wheel stacked unidirectional valve (28) passes through gas circuit and the left driving linear exhaust solenoid valve of wheel (21)
Port a is connected, the air inlet of the port b of the left driving linear exhaust solenoid valve of wheel (21) and left driving wheel ABS solenoid valve (22)
Port a is connected by gas circuit, the air inlet port b of left driving wheel ABS solenoid valve (22) and left driving wheel braking gas chamber (24)
It is connected by gas circuit；
The port a of nonpowered axle relay valve (32) is connected with the air outlet b of main air accumulator (4) by gas circuit, nonpowered axle after
The port b of dynamic valve (32) is connected by gas circuit with the port b of third triple valve (33), and the port c of third triple valve (33) passes through
Gas circuit is connected with the air inlet port a of left non-driven wheel ABS solenoid valve (38), the non-driven wheel ABS solenoid valve (38) in a left side into
Gas port b is connected with left non-driven wheel braking gas chamber (37) by gas circuit, the port a of third triple valve (33) by gas circuit and
The air inlet port a of right non-driven wheel ABS solenoid valve (39) is connected, the air inlet port b of right non-driven wheel ABS solenoid valve (39)
It is connected with right non-driven wheel braking gas chamber (40) by gas circuit；
Right non-driven wheel brake pressure sensor (41) is installed on right non-driven wheel braking gas chamber (40)；
Right driving wheel wheel speed sensors (14), left driving wheel wheel speed sensors (25), left non-driven wheel wheel speed sensors
(36), right non-driven wheel wheel speed sensors (42) are connected by signal wire with brake monitor (31)；
Right driving wheel ABS solenoid valve (17), left driving wheel ABS solenoid valve (22), left non-driven wheel ABS solenoid valve
(38), right non-driven wheel ABS solenoid valve (39) is connected by signal wire with brake monitor (31)；
Switch electromagnetic valve (5), the linear exhaust solenoid valve of right driving wheel (11), right driving wheel brake pressure sensor (16),
The linear exhaust solenoid valve of left driving wheel (21), right non-driven wheel brake pressure sensor (41) and brake pedal displacement sensing
Device (45) is connected by signal wire with entire car controller (30)；
Drive motor controller (20), battery management system (29), entire car controller (30) and brake monitor (31) pass through CAN
Bus is connected.
2. the two-wheeled centralized driving electric vehicle according to claim 1 based on stacked unidirectional valve and linear exhaust solenoid valve
Brake energy recovering system, entire car controller (30) be based on brake monitor (31) export by CAN bus speed, brake step on
Pedal displacement signal, the battery management system (29) of plate displacement sensor (45) output are allowed by the battery that CAN bus exports
Maximum charging current, the driving motor and transmission device (19) that drive motor controller (20) is exported by CAN bus can mention
The maximum motor brake force of confession judges whether to trigger braking energy recovering function, and control switch solenoid valve (5), right drive accordingly
The linear exhaust solenoid valve of motor car wheel (11) and the linear exhaust solenoid valve of left driving wheel (21), it is characterised in that:
When brake pedal and triggering braking energy recovering function, entire car controller (30) control switch solenoid valve (5) is led
Logical, the gas circuit between secondary air accumulator (3) port b and the first triple valve (7) port a is connected, and entire car controller (30) controls right drive
The linear exhaust solenoid valve of motor car wheel (11) and the linear exhaust solenoid valve of left driving wheel (21) are in close state, exhaust port
C is not communicated with atmosphere；When working as brake pedal, but not triggering braking energy recovering function, entire car controller (30) control is opened
Powered-down magnet valve (5) is in an off state, and the gas circuit between secondary air accumulator (3) port b and the first triple valve (7) port a is not turned on,
Entire car controller (30) controls the linear exhaust solenoid valve of right driving wheel (11) and the linear exhaust solenoid valve of left driving wheel (21)
It is in close state, exhaust port c is not communicated with atmosphere；When driver loosens the brake (1), entire car controller (30)
Control switch solenoid valve (5) disconnects the air circuit connection between pair air accumulator (3) port b and the first triple valve (7) port a, vehicle
Controller (30) the control linear exhaust solenoid valve of right driving wheel (11) and the linear exhaust solenoid valve of left driving wheel (21) are in
Opening state, exhaust port c are communicated with atmosphere, and its aperture and brake pedal displacement sensor (45) are exported by signal wire
The proportional relationship of pedal displacement signal.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910429073.5A CN110077375B (en) | 2019-05-22 | 2019-05-22 | Two-wheeled centralized driving electric vehicle braking energy recovery system based on stacked one-way valve and linear exhaust electromagnetic valve |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910429073.5A CN110077375B (en) | 2019-05-22 | 2019-05-22 | Two-wheeled centralized driving electric vehicle braking energy recovery system based on stacked one-way valve and linear exhaust electromagnetic valve |
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| CN110077375A true CN110077375A (en) | 2019-08-02 |
| CN110077375B CN110077375B (en) | 2022-02-18 |
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| KR20030032661A (en) * | 2001-10-19 | 2003-04-26 | 현대자동차주식회사 | An air brake circuit for tractor |
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| CN110077375B (en) | 2022-02-18 |
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