CN110103918A - Four-wheel centralized driving brake energy recovering system of electric vehicle based on stacked unidirectional valve and check valve - Google Patents

Four-wheel centralized driving brake energy recovering system of electric vehicle based on stacked unidirectional valve and check valve Download PDF

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Publication number
CN110103918A
CN110103918A CN201910429070.1A CN201910429070A CN110103918A CN 110103918 A CN110103918 A CN 110103918A CN 201910429070 A CN201910429070 A CN 201910429070A CN 110103918 A CN110103918 A CN 110103918A
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China
Prior art keywords
port
valve
driving wheel
brake
gas circuit
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CN201910429070.1A
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Chinese (zh)
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CN110103918B (en
Inventor
杨坤
王杰
李敏
郭栋
赵淑红
刘庆新
籍英华
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Shandong University of Technology
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Shandong University of Technology
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Classifications

    • 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
    • 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
    • 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 four-wheel centralized driving brake energy recovering system of electric vehicle based on stacked unidirectional valve and check valve, belong to electric vehicle brake power recovery technology field, the program in having the decoupling type brake energy recovering system based on air pressure ABS solenoid valve by increasing secondary air accumulator, switch electromagnetic valve, triple valve, driving wheel stacked unidirectional valve, driving wheel check valve, each driving wheel braking gas circuit is set to all have double back line structure, make it in Brake energy recovery, the high gas source of an air pressure may be selected and provide high pressure gas for each driving wheel brake chamber, when continuously being braked present in existing scheme to efficiently solve, because the relatively low bring driving wheel coupling braking force response rate of bleed pressure is slow, and lag behind the critical issue of demand brake force.

Description

Four-wheel centralized driving electric vehicle brake power based on stacked unidirectional valve and check valve Recovery system
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 list To the four-wheel centralized driving brake energy recovering system of electric vehicle of 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；In addition, front and back wheel is recyclable for 4 wheel driven electric commercial vehicle Braking energy, this provides the foundation to further increase Brake energy recovery rate, therefore develops and be suitable for 4 wheel driven electric commercial vehicle Decoupling type brake energy recovering system be of great significance.
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 four-wheel centralized driving brake energy recovering system of electric vehicle based on stacked unidirectional valve and check valve is provided, In the program, by increasing secondary air accumulator (3), rear drive shaft switch electromagnetic valve (5), the in existing brake energy recovering system One triple valve (7), rear drive shaft relay valve (8), the second triple valve (9), right rear drive sprocket stacked unidirectional valve (10), the three or three Port valve (11), right rear drive sprocket brake-pressure sensor (15), right rear drive sprocket check valve (19), the 4th triple valve (20), a left side Rear drive sprocket check valve (23), the 5th triple valve (30), left back driving wheel stacked unidirectional valve (31), the 6th triple valve (32), Drive axle relay valve (36), the 7th triple valve (37), the 8th triple valve (38), left drive wheel stacked unidirectional valve (39), 9th triple valve (40), left drive wheel check valve (47), right front driving wheel check valve (50), right front driving wheel brake pressure pass Sensor (54), the tenth triple valve (58), right front driving wheel stacked unidirectional valve (59), the 11st triple valve (60), the 12nd The components such as port valve (61), brake pedal displacement sensor (62) and drive axle switch electromagnetic valve (63) brake each driving wheel There are two independent high-pressure air source and double back line structures for circuit tool, and when triggering Brake energy recovery, can be by control The gas source for selecting an air pressure high of uniting provides high pressure gas for each driving wheel braking gas chamber, to effectively solve continuous braking When, the relatively low bring air pressure brake-force control speed of bleed pressure reduces problem.
A kind of four-wheel centralized driving brake energy recovering system of electric vehicle based on stacked unidirectional valve and check valve is by making Dynamic pedal (1), brake valve (2), secondary air accumulator (3), main air accumulator (4), rear drive shaft switch electromagnetic valve (5), air compressor (6), the first triple valve (7), rear drive shaft relay valve (8), the second triple valve (9), right rear drive sprocket stacked unidirectional valve (10), Third triple valve (11), right rear drive sprocket wheel speed sensors (14), right rear drive sprocket brake-pressure sensor (15), right rear-guard Driver brake gas chamber (16), right rear drive sprocket ABS solenoid valve (17), right rear drive sprocket check valve (19), the 4th triple valve (20), rear axle driving motor and transmission device (21), rear axle drive motor controller (22), left back driving wheel check valve (23), Left back driving wheel ABS solenoid valve (25), left back driving wheel brake chamber (26), left back driving wheel wheel speed sensors (27), the 5th Triple valve (30), left back driving wheel stacked unidirectional valve (31), the 6th triple valve (32), battery management system (33), vehicle control It is device (34) processed, brake monitor (35), drive axle relay valve (36), the 7th triple valve (37), the 8th triple valve (38), left front Driving wheel stacked unidirectional valve (39), the 9th triple valve (40), left drive wheel wheel speed sensors (43), the braking of left drive wheel Gas chamber (44), left drive wheel ABS solenoid valve (46), left drive wheel check valve (47), front axle driving motor and transmission device (48), before front axle drive motor controller (49), right front driving wheel check valve (50), right front driving wheel ABS solenoid valve (51), the right side Driving wheel brake chamber (53), right front driving wheel brake-pressure sensor (54), right front driving wheel wheel speed sensors (55), the tenth Triple valve (58), right front driving wheel stacked unidirectional valve (59), the 11st triple valve (60), the 12nd triple valve (61), braking Pedal displacement sensor (62), drive axle switch electromagnetic valve (63) 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 drive axle of brake valve (2) The control port c of relay valve (36) is connected by gas circuit, the air outlet d of brake valve (2) and the control of rear drive shaft relay valve (8) Port c processed 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 rear drive shaft switch electromagnetic valve (5), The air outlet b of rear drive shaft switch electromagnetic valve (5) is connected with the air inlet port a of the first triple valve (7) by gas circuit, and the one or three The air outlet b of port valve (7) is connected by gas circuit with the air inlet port b of right rear drive sprocket stacked unidirectional valve (10), and the one or three The air outlet c of port valve (7) is connected by gas circuit with the air inlet port b of left back driving wheel stacked unidirectional valve (31).
The port a of rear drive shaft relay valve (8) is connected with the air outlet e of main air accumulator (4) by gas circuit, rear drive shaft The port b of relay 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) is connected by gas circuit with the port c of the 4th triple valve (20), the 4th triple valve (20) port a is connected by gas circuit with the air inlet port a of right rear drive sprocket stacked unidirectional valve (10), the 4th triple valve (20) port b is connected by gas circuit with the air outlet b of right rear drive sprocket check valve (19), and right rear drive sprocket superposing type is unidirectional The air outlet c of valve (10) is connected with the port a of third triple valve (11) by gas circuit, right rear drive sprocket check valve (19) Air inlet port a is connected with the port c of third triple valve (11) by gas circuit, is driven behind the port b of third triple valve (11) and the right side Take turns ABS solenoid valve (17) air inlet port a by gas circuit be connected, the air inlet port b of right rear drive sprocket ABS solenoid valve (17) with Right rear drive sprocket brake chamber (16) is connected by gas circuit.
Right rear drive sprocket brake-pressure sensor (15) is installed on right rear drive sprocket brake chamber (16).
The port c of second triple valve (9) is connected by gas circuit with the port c of the 6th triple valve (32), the 6th triple valve (32) port a is connected by gas circuit with the air inlet port a of left back driving wheel stacked unidirectional valve (31), the 6th triple valve (32) port b is connected by gas circuit with the air outlet b of left back driving wheel check valve (23), and left back driving wheel superposing type is unidirectional The air outlet c of valve (31) is connected with the port a of the 5th triple valve (30) by gas circuit, left back driving wheel check valve (23) Air inlet port a is connected with the port c of the 5th triple valve (30) by gas circuit, the port b of the 5th triple valve (30) and left back driving The air inlet port a for taking turns ABS solenoid valve (25) is connected by gas circuit, the air inlet port b of left back driving wheel ABS solenoid valve (25) and a left side Rear drive sprocket brake chamber (26) is connected by gas circuit.
The air outlet c of secondary air accumulator (3) passes through the air inlet port a phase of gas circuit and drive axle switch electromagnetic valve (63) Even, the air outlet b of drive axle switch electromagnetic valve (63) and the air inlet port a of the 12nd triple valve (61) pass through gas circuit phase Even, the air outlet b of the 12nd triple valve (61) passes through the air inlet port b of gas circuit and right front driving wheel stacked unidirectional valve (59) It is connected, the air outlet c of the 12nd triple valve (61) passes through the inlet end of gas circuit and left drive wheel stacked unidirectional valve (39) Mouth b is connected.
The port a of drive axle relay valve (36) is connected with the air outlet b of main air accumulator (4) by gas circuit, preceding driving The port b of axis relay valve (36) is connected by gas circuit with the port b of the 7th triple valve (37).
The port a of 7th triple valve (37) is connected by gas circuit with the port c of the 11st triple valve (60), the 11st threeway The port a of valve (60) is connected by gas circuit with the air inlet port a of right front driving wheel stacked unidirectional valve (59), the 11st triple valve (60) port b is connected by gas circuit with the air outlet b of right front driving wheel check valve (50), and right front driving wheel superposing type is unidirectional The air outlet c of valve (59) is connected with the port a of the tenth triple valve (58) by gas circuit, right front driving wheel check valve (50) into Gas port a is connected with the port c of the tenth triple valve (58) by gas circuit, the port b and right front driving wheel of the tenth triple valve (58) The air inlet port a of ABS solenoid valve (51) is connected by gas circuit, the air inlet port b of right front driving wheel ABS solenoid valve (51) and it is right before Driving wheel brake chamber (53) is connected by gas circuit.
Right front driving wheel brake-pressure sensor (54) is installed on right front driving wheel brake chamber (53).
The port c of 7th triple valve (37) is connected by gas circuit with the port c of the 8th triple valve (38), the 8th triple valve (38) port a is connected by gas circuit with the air inlet port a of left drive wheel stacked unidirectional valve (39), the 8th triple valve (38) port b is connected by gas circuit with the air outlet b of left drive wheel check valve (47), and left drive wheel superposing type is unidirectional The air outlet c of valve (39) is connected with the port a of the 9th triple valve (40) by gas circuit, left drive wheel check valve (47) Air inlet port a is connected with the port c of the 9th triple valve (40) by gas circuit, the port b and left drive of the 9th triple valve (40) Take turns ABS solenoid valve (46) air inlet port a by gas circuit be connected, the air inlet port b of left drive wheel ABS solenoid valve (46) with Left drive wheel brake chamber (44) is connected by gas circuit.
Right rear drive sprocket wheel speed sensors (14), left back driving wheel wheel speed sensors (27), left drive wheel wheel speed sensing Device (43), right front driving wheel wheel speed sensors (55) are connected by signal wire with brake monitor (35).
Right rear drive sprocket ABS solenoid valve (17), left back driving wheel ABS solenoid valve (25), left drive wheel ABS solenoid valve (46), right front driving wheel ABS solenoid valve (51) is connected by signal wire with brake monitor (35).
Rear drive shaft switch electromagnetic valve (5), right rear drive sprocket brake-pressure sensor (15), right front driving wheel brake pressure Sensor (54), brake pedal displacement sensor (62) and drive axle switch electromagnetic valve (63) pass through signal wire and full-vehicle control Device (34) is connected.
Rear axle drive motor controller (22), battery management system (33), entire car controller (34), brake monitor (35) it is connected with front axle drive motor controller (49) by CAN bus.
It is based on above-mentioned recycled based on the four-wheel centralized driving electric vehicle brake power of stacked unidirectional valve and check valve System, entire car controller (34) are based on speed, the brake pedal displacement sensor that brake monitor (35) are exported by CAN bus (62) the battery permission maximum charging current that pedal displacement signal, the battery management system (33) exported is exported by CAN bus, The rear axle driving motor and transmission device (21) that rear axle drive motor controller (22) is exported by CAN bus can be provided most Big motor braking power, the front axle driving motor and transmission device that front axle drive motor controller (49) is exported by CAN bus (48) the maximum motor brake force that can be provided judges whether to trigger braking energy recovering function, and controls rear drive shaft accordingly Switch electromagnetic valve (5) and drive axle switch electromagnetic valve (63).
When brake pedal and triggering braking energy recovering function, entire car controller (34) controls rear drive shaft switch Solenoid valve (5) conducting, the port b of secondary air accumulator (3) are connected with the gas circuit between the port a of the first triple valve (7)；Full-vehicle control Device (34) controls drive axle switch electromagnetic valve (63) conducting, the port c of secondary air accumulator (3) and the end of the 12nd triple valve (61) Gas circuit conducting between mouth a.
When brake pedal but when not triggering braking energy recovering function, entire car controller (34) control rear drive shaft is opened Powered-down magnet valve (5) shutdown, the gas circuit between the port b of secondary air accumulator (3) and the port a of the first triple valve (7) are not turned on；Vehicle Controller (34) controls drive axle switch electromagnetic valve (63) shutdown, the port c and the 12nd triple valve (61) of secondary air accumulator (3) Port a between gas circuit be not turned on.
When driver loosens the brake (1), it is disconnected that entire car controller (34) controls rear drive shaft switch electromagnetic valve (5) Open the air circuit connection between secondary air accumulator (3) port b and the first triple valve (7) port a；Driving before entire car controller (34) control Axis switch electromagnetic valve (63) disconnects the air circuit connection between pair air accumulator (3) port c and the 12nd triple valve (61) port a.
Compared with prior art, the present invention by increasing secondary air accumulator (3), rear-guard in existing brake energy recovering system Moving axis switch electromagnetic valve (5), the first triple valve (7), rear drive shaft relay valve (8), the second triple valve (9), right rear drive sprocket are folded Add formula check valve (10), third triple valve (11), right rear drive sprocket brake-pressure sensor (15), right rear drive sprocket check valve (19), the 4th triple valve (20), left back driving wheel check valve (23), the 5th triple valve (30), left back driving wheel superposing type are unidirectional Valve (31), the 6th triple valve (32), drive axle relay valve (36), the 7th triple valve (37), the 8th triple valve (38), left front drive Driving wheel stacked unidirectional valve (39), the 9th triple valve (40), left drive wheel check valve (47), right front driving wheel check valve (50), right front driving wheel brake-pressure sensor (54), the tenth triple valve (58), right front driving wheel stacked unidirectional valve (59), 11st triple valve (60), the 12nd triple valve (61), brake pedal displacement sensor (62) and drive axle switch electromagnetic valve (63) etc. components, making each driving wheel brake circuit tool, there are two independent high-pressure air source and double back line structures, trigger braking energy When recycling, high pressure gas can be provided for driving wheel brake chamber by the higher gas source of air pressure, to efficiently solve existing scheme Present in when continuously braking, because the relatively low bring driving wheel coupling braking force response rate of bleed pressure is slow, and lags behind and need Seek the critical issue of brake force.
Fig. 1 is that the present invention is based on the recycling of the four-wheel centralized driving electric vehicle brake power of stacked unidirectional valve and check valve The structural schematic diagram of system.Wherein: 1, brake pedal；2, brake valve；3, secondary air accumulator；4, main air accumulator；5, rear drive shaft switchs Solenoid valve；6, air compressor；7, the first triple valve；8, rear drive shaft relay valve；9, the second triple valve；10, right rear drive sprocket Stacked unidirectional valve；11, third triple valve；12, right rear drive sprocket brake；13, right rear drive sprocket；14, right rear drive sprocket wheel Fast sensor；15, right rear drive sprocket brake-pressure sensor；16, right rear drive sprocket brake chamber；17, right rear drive sprocket ABS electricity Magnet valve；18, jack shaft behind the right side；19, right rear drive sprocket check valve；20, the 4th triple valve；21, rear axle driving motor and transmission Device；22, rear axle drive motor controller；23, left back driving wheel check valve；24, left back jack shaft；25, left back driving wheel ABS solenoid valve；26, left back driving wheel brake chamber；27, left back driving wheel wheel speed sensors；28, left back driving wheel；29, left back Driving wheel brake；30, the 5th triple valve；31, left back driving wheel stacked unidirectional valve；32, the 6th triple valve；33, cell tube Reason system；34, entire car controller；35, brake monitor；36, drive axle relay valve；37, the 7th triple valve；38, the 8th 3 Port valve；39, left drive wheel stacked unidirectional valve；40, the 9th triple valve；41, left drive wheel；42, left drive wheel is braked Device；43, left drive wheel wheel speed sensors；44, left drive wheel brake chamber；45, left drive semiaxis；46, left drive Take turns ABS solenoid valve；47, left drive wheel check valve；48, front axle driving motor and transmission device；49, front axle driving motor controls Device；50, right front driving wheel check valve；51, right front driving wheel ABS solenoid valve；52, jack shaft before the right side；53, right front driving wheel Brake chamber；54, right front driving wheel brake-pressure sensor；55, right front driving wheel wheel speed sensors；56, right front driving wheel system Dynamic device；57, right front driving wheel；58, the tenth triple valve；59, right front driving wheel stacked unidirectional valve；60, the 11st triple valve； 61, the 12nd triple valve；62, brake pedal displacement sensor；63, drive axle switch electromagnetic valve.
A specific embodiment of the invention is described in detail as follows.
The present invention provides a kind of four-wheel centralized driving electric vehicle brake power based on stacked unidirectional valve and check valve time Receipts system referring to attached drawing and gives an actual example further to the present invention to keep technical solution of the present invention and effect clearer, clear It is described in detail；It should be appreciated that specific implementation described herein is not intended to limit the present invention only to explain the present invention.
As shown in Figure 1, recycling system based on the four-wheel centralized driving electric vehicle brake power of stacked unidirectional valve and check valve System is by brake pedal (1), brake valve (2), secondary air accumulator (3), main air accumulator (4), rear drive shaft switch electromagnetic valve (5), air Compressor (6), the first triple valve (7), rear drive shaft relay valve (8), the second triple valve (9), right rear drive sprocket superposing type are unidirectional Valve (10), third triple valve (11), right rear drive sprocket wheel speed sensors (14), right rear drive sprocket brake-pressure sensor (15), Right rear drive sprocket brake chamber (16), right rear drive sprocket ABS solenoid valve (17), right rear drive sprocket check valve (19), the 4th threeway Valve (20), rear axle driving motor and transmission device (21), rear axle drive motor controller (22), left back driving wheel check valve (23), left back driving wheel ABS solenoid valve (25), left back driving wheel brake chamber (26), left back driving wheel wheel speed sensors (27), It is 5th triple valve (30), left back driving wheel stacked unidirectional valve (31), the 6th triple valve (32), battery management system (33), whole Vehicle controller (34), brake monitor (35), drive axle relay valve (36), the 7th triple valve (37), the 8th triple valve (38), Left drive wheel stacked unidirectional valve (39), the 9th triple valve (40), left drive wheel wheel speed sensors (43), left drive wheel Brake chamber (44), left drive wheel ABS solenoid valve (46), left drive wheel check valve (47), front axle driving motor and transmission Device (48), front axle drive motor controller (49), right front driving wheel check valve (50), right front driving wheel ABS solenoid valve (51), Right front driving wheel brake chamber (53), right front driving wheel brake-pressure sensor (54), right front driving wheel wheel speed sensors (55), Tenth triple valve (58), right front driving wheel stacked unidirectional valve (59), the 11st triple valve (60), the 12nd triple valve (61), Brake pedal displacement sensor (62), drive axle switch electromagnetic valve (63) 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 drive axle of brake valve (2) The control port c of relay valve (36) is connected by gas circuit, the air outlet d of brake valve (2) and the control of rear drive shaft relay valve (8) Port c processed 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 rear drive shaft switch electromagnetic valve (5), The air outlet b of rear drive shaft switch electromagnetic valve (5) is connected with the air inlet port a of the first triple valve (7) by gas circuit, and the one or three The air outlet b of port valve (7) is connected by gas circuit with the air inlet port b of right rear drive sprocket stacked unidirectional valve (10), and the one or three The air outlet c of port valve (7) is connected by gas circuit with the air inlet port b of left back driving wheel stacked unidirectional valve (31).
The port a of rear drive shaft relay valve (8) is connected with the air outlet e of main air accumulator (4) by gas circuit, rear drive shaft The port b of relay 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) is connected by gas circuit with the port c of the 4th triple valve (20), the 4th triple valve (20) port a is connected by gas circuit with the air inlet port a of right rear drive sprocket stacked unidirectional valve (10), the 4th triple valve (20) port b is connected by gas circuit with the air outlet b of right rear drive sprocket check valve (19), and right rear drive sprocket superposing type is unidirectional The air outlet c of valve (10) is connected with the port a of third triple valve (11) by gas circuit, right rear drive sprocket check valve (19) Air inlet port a is connected with the port c of third triple valve (11) by gas circuit, is driven behind the port b of third triple valve (11) and the right side The air inlet port a for taking turns ABS solenoid valve (17) is connected by gas circuit, the air inlet port b of right rear drive sprocket ABS solenoid valve (17) and the right side Rear drive sprocket brake chamber (16) is connected by gas circuit.
Right rear drive sprocket brake-pressure sensor (15) is installed on right rear drive sprocket brake chamber (16).
The port c of second triple valve (9) is connected by gas circuit with the port c of the 6th triple valve (32), the 6th triple valve (32) port a is connected by gas circuit with the air inlet port a of left back driving wheel stacked unidirectional valve (31), the 6th triple valve (32) port b is connected by gas circuit with the air outlet b of left back driving wheel check valve (23), and left back driving wheel superposing type is unidirectional The air outlet c of valve (31) is connected with the port a of the 5th triple valve (30) by gas circuit, left back driving wheel check valve (23) Air inlet port a is connected with the port c of the 5th triple valve (30) by gas circuit, the port b of the 5th triple valve (30) and left back driving Take turns ABS solenoid valve (25) air inlet port a by gas circuit be connected, the air inlet port b of left back driving wheel ABS solenoid valve (25) with Left back driving wheel brake chamber (26) is connected by gas circuit.
The air outlet c of secondary air accumulator (3) passes through the air inlet port a phase of gas circuit and drive axle switch electromagnetic valve (63) Even, the air outlet b of drive axle switch electromagnetic valve (63) and the air inlet port a of the 12nd triple valve (61) pass through gas circuit phase Even, the air outlet b of the 12nd triple valve (61) passes through the air inlet port b of gas circuit and right front driving wheel stacked unidirectional valve (59) It is connected, the air outlet c of the 12nd triple valve (61) passes through the inlet end of gas circuit and left drive wheel stacked unidirectional valve (39) Mouth b is connected.
The port a of drive axle relay valve (36) is connected with the air outlet b of main air accumulator (4) by gas circuit, preceding driving The port b of axis relay valve (36) is connected by gas circuit with the port b of the 7th triple valve (37).
The port a of 7th triple valve (37) is connected by gas circuit with the port c of the 11st triple valve (60), the 11st threeway The port a of valve (60) is connected by gas circuit with the air inlet port a of right front driving wheel stacked unidirectional valve (59), the 11st triple valve (60) port b is connected by gas circuit with the air outlet b of right front driving wheel check valve (50), and right front driving wheel superposing type is unidirectional The air outlet c of valve (59) is connected with the port a of the tenth triple valve (58) by gas circuit, right front driving wheel check valve (50) into Gas port a is connected with the port c of the tenth triple valve (58) by gas circuit, the port b and right front driving wheel of the tenth triple valve (58) The air inlet port a of ABS solenoid valve (51) is connected by gas circuit, the air inlet port b of right front driving wheel ABS solenoid valve (51) and it is right before Driving wheel brake chamber (53) is connected by gas circuit.
Right front driving wheel brake-pressure sensor (54) is installed on right front driving wheel brake chamber (53).
The port c of 7th triple valve (37) is connected by gas circuit with the port c of the 8th triple valve (38), the 8th triple valve (38) port a is connected by gas circuit with the air inlet port a of left drive wheel stacked unidirectional valve (39), the 8th triple valve (38) port b is connected by gas circuit with the air outlet b of left drive wheel check valve (47), and left drive wheel superposing type is unidirectional The air outlet c of valve (39) is connected with the port a of the 9th triple valve (40) by gas circuit, left drive wheel check valve (47) Air inlet port a is connected with the port c of the 9th triple valve (40) by gas circuit, the port b and left drive of the 9th triple valve (40) The air inlet port a for taking turns ABS solenoid valve (46) is connected by gas circuit, the air inlet port b of left drive wheel ABS solenoid valve (46) and a left side Front driving wheel brake chamber (44) is connected by gas circuit.
Right rear drive sprocket wheel speed sensors (14), left back driving wheel wheel speed sensors (27), left drive wheel wheel speed sensing Device (43), right front driving wheel wheel speed sensors (55) are connected by signal wire with brake monitor (35).
Right rear drive sprocket ABS solenoid valve (17), left back driving wheel ABS solenoid valve (25), left drive wheel ABS solenoid valve (46), right front driving wheel ABS solenoid valve (51) is connected by signal wire with brake monitor (35).
Rear drive shaft switch electromagnetic valve (5), right rear drive sprocket brake-pressure sensor (15), right front driving wheel brake pressure Sensor (54), brake pedal displacement sensor (62) and drive axle switch electromagnetic valve (63) pass through signal wire and full-vehicle control Device (34) is connected.
Rear axle drive motor controller (22), battery management system (33), entire car controller (34), brake monitor (35) it is connected with front axle drive motor controller (49) by CAN bus.
When braking, the working principle of above-mentioned braking system is as follows.
In car running process, brake monitor (35) receives right rear drive sprocket wheel speed sensors (14), left back driving wheel The wheel speed letter that wheel speed sensors (27), left drive wheel wheel speed sensors (43), right front driving wheel wheel speed sensors (55) export Number.
Entire car controller (34) receives the speed signal exported by brake monitor (35) and vehicle acceleration signal, by making The pedal displacement signal of dynamic pedal displacement sensor (62) output, before the output of right front driving wheel brake-pressure sensor (54) Drive shaft braking pressure pressure value, the rear drive shaft braking pressure pressure of right rear drive sprocket brake-pressure sensor (15) output Value, battery management system (33) allow maximum charging current, rear axle drive motor controller by the battery that CAN bus exports (22) the maximum motor brake force that the rear axle driving motor and transmission device (21) exported by CAN bus can be provided, front axle The maximum electricity that the front axle driving motor and transmission device (48) that drive motor controller (49) is exported by CAN bus can be provided Brake force.
Rear axle driving motor and transmission device (21) can be applied to right rear drive sprocket (13) and left back driving wheel (28) most Big motor braking power, front axle driving motor and transmission device (48) can be applied to right front driving wheel (57) and left drive wheel (41) maximum motor brake force is by entire car controller (34) according to vehicle speed, vehicle acceleration, battery management system (33) The battery exported by CAN bus allows maximum charging current, rear axle drive motor controller (22) to export by CAN bus Rear axle driving motor and transmission device (21) maximum motor brake force, the front axle drive motor controller (49) that can be provided it is logical The maximum motor brake force that the front axle driving motor and transmission device (48) for crossing CAN bus output can be provided determines.
Entire car controller (34) is based on speed, the brake pedal displacement biography that brake monitor (35) are exported by CAN bus The battery permission maximum charge that pedal displacement signal, the battery management system (33) of sensor (62) output are exported by CAN bus The rear axle driving motor and transmission device (21) that electric current, rear axle drive motor controller (22) are exported by CAN bus can mention The front axle driving motor and transmission that the maximum motor brake force and front axle drive motor controller (49) of confession are exported by CAN bus The maximum motor brake force that device (48) can be provided, and judged whether to trigger Brake energy recovery function according to following four conditions Can: condition one: the vehicle speed value of brake monitor (35) output is greater than the minimum speed threshold value for allowing Brake energy recovery；Condition Two: the pedal displacement signal of brake pedal displacement sensor (62) output is greater than the pedal displacement threshold of triggering Brake energy recovery Value；Condition three: the battery of battery management system (33) output allows maximum charging current to be greater than 0；Condition four: by entire car controller (34) the front axle demand motor braking power or rear axle demand motor braking power determined is greater than the minimum electricity for allowing Brake energy recovery Brake force threshold value.
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 (34) is displaced according to speed, vehicle acceleration and brake pedal, determines left drive wheel (41), the right side Total brake force target value needed for front driving wheel (57), left back driving wheel (28) and right rear drive sprocket (13).
Entire car controller (34) is according to left drive wheel (41), right front driving wheel (57), left back driving wheel (28) He Youhou Total brake force target value, battery management system (33) needed for driving wheel (13) are allowed maximum by the battery that CAN bus exports The rear axle driving motor and transmission device (21) institute that charging current, rear axle drive motor controller (22) are exported by CAN bus Front axle driving motor that the maximum motor brake force and front axle drive motor controller (49) that can be provided are exported by CAN bus and The maximum motor brake force that transmission device (48) can be provided determines left drive wheel (41), right front driving wheel (57), left back drive Motor braking power target value needed for driving wheel (28) and right rear drive sprocket (13).
Entire car controller (34) is according to needed for the total brake force target value of left back driving wheel (28) and left back driving wheel (28) Motor braking power target value determines the air-pressure brake power target value of left back driving wheel (28)；Entire car controller (34) is according to right rear-guard Motor braking power target value needed for the total brake force target value of driving wheel (13) and right rear drive sprocket (13) determines right rear drive sprocket (13) air-pressure brake power target value；Entire car controller (34) is according to the total brake force target value of left drive wheel (41) and left front drive Motor braking power target value needed for driving wheel (41) determines the air-pressure brake power target value of left drive wheel (41)；Entire car controller (34) the motor braking power target value according to needed for the total brake force target value of right front driving wheel (57) and right front driving wheel (57) is true The air-pressure brake power target value of fixed right front driving wheel (57).
Entire car controller (34) will be after required left back driving wheel (28) motor braking power target value and the right side by CAN bus Driving wheel (13) motor braking power target value, which exports, gives rear axle drive motor controller (22), by required left drive wheel (41) motor braking power target value and right front driving wheel (57) motor braking power target value export and give front axle drive motor controller (49), it is driven behind entire car controller (34) output left drive wheel (41), right front driving wheel (57), left back driving wheel (28) and the right side The air-pressure brake power target value for taking turns (13), the rear drive shaft air-pressure brake exported by right rear drive sprocket brake-pressure sensor (15) Power actual value gives braking control by the drive axle air-pressure brake power actual value that right front driving wheel brake-pressure sensor (53) exports Device (35) processed.
When triggering braking energy recovering function, the principle for applying braking to left back driving wheel (28) is as follows.
Entire car controller (34) controls rear drive shaft switch electromagnetic valve (5) conducting, the high pressure gas in secondary air accumulator (3) according to It is secondary by the port b of secondary air accumulator (3), the port a and port b of rear drive shaft switch electromagnetic valve (5), the first triple valve (7) Port a and port c reaches the port b of left back driving wheel stacked unidirectional valve (31).
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 rear drive shaft relay valve (8), the port a and port b of rear drive shaft relay valve (8) is connected, main storage High pressure gas in gas tank (4) successively passes through the port e of main air accumulator (4), the port a of rear drive shaft relay valve (8) and port B, the left back driving wheel superposition of port c and port a arrival of the port b and port c of the second triple valve (9), the 6th triple valve (32) The port a of formula check valve (31).
At this point, according to left back driving wheel stacked unidirectional valve (31) port a air pressure and left back driving wheel stacked unidirectional valve (31) size of port b air pressure is divided into the following two kinds to the case where left back driving wheel brake chamber (26) offer brake pressure.
When left back driving wheel stacked unidirectional valve (31) port a air pressure is greater than port b air pressure, given by main air accumulator (4) Left back driving wheel brake chamber (26) provides high pressure gas；At this point, the high pressure gas in main air accumulator (4) successively passes through main gas storage The port e of tank (4), the port a and port b of rear drive shaft relay valve (8), the port b and port c of the second triple valve (9), Port c and port a, the port a and port c of left back driving wheel stacked unidirectional valve (31), the 5th threeway of six triple valves (32) The port a and port b of valve (30), left back driving wheel ABS solenoid valve (25) port a and port b into left back driving wheel brake Gas chamber (26), so as to apply air-pressure brake power to left back driving wheel (28) by left back driving wheel brake (29).
When left back driving wheel stacked unidirectional valve (31) port a air pressure is less than port b air pressure, given by secondary air accumulator (3) Left back driving wheel brake chamber (26) provides high pressure gas；At this point, the high pressure gas in secondary air accumulator (3) successively passes through secondary gas storage The port b of tank (3), the port a and port b of rear drive shaft switch electromagnetic valve (5), the first triple valve (7) port a and port c, Port b and port c, the port a and port b of the 5th triple valve (30), left back drive of left back driving wheel stacked unidirectional valve (31) The port a and port b of driving wheel ABS solenoid valve (25), into left back driving wheel brake chamber (26), so as to pass through left back driving It takes turns brake (29) and applies air-pressure brake power to left back driving wheel (28).
For the decoupling control for realizing left back driving wheel (28) motor braking power and air-pressure brake power, left back driving wheel can be passed through ABS solenoid valve (25) adjusts the size of left back driving wheel (28) air-pressure brake power, according to rear axle driving motor and transmission device (21) can be applied to left back driving wheel (28) maximum motor brake force and left back driving wheel (28) total brake force target value it Between relationship, to left back driving wheel (28) apply brake force mode be divided into the following two kinds.
Mode one: when rear axle driving motor and transmission device (21) are applied to left back driving by left back jack shaft (24) When taking turns the maximum motor brake force of (28) and being greater than or equal to left back driving wheel (28) total brake force target value, left back driving wheel (28) air-pressure brake power target value is 0, at this point, brake monitor (35) passes through the left back driving wheel ABS electromagnetism of signal line traffic control Valve (25) port a is closed, and port b and port c are opened, and disconnects left back driving wheel brake chamber (26) and the 5th triple valve (30) is held Air circuit connection between mouthful b, left back driving wheel brake chamber (26) by the port b of left back driving wheel ABS solenoid valve (25) and Port c is communicated with atmosphere, gives left back drive by left back jack shaft (24) by rear axle driving motor and transmission device (21) at this time Brake force needed for driving wheel (28) applies.
Mode two: when rear axle driving motor and transmission device (21) can be applied to left back drive by left back jack shaft (24) When the maximum motor brake force of driving wheel (28) is less than left back driving wheel (28) total brake force target value, rear axle driving motor and transmission Device (21) applies maximum motor brake force to left back driving wheel (28) by left back jack shaft (24).
Left back driving wheel (28) air-pressure brake power target value is driven by the total brake force target value of left back driving wheel (28) and rear axle Dynamic motor and transmission device (21) are applied to the maximum motor brake force of left back driving wheel (28) by left back jack shaft (24) Difference determine, according to the relationship between left back driving wheel (28) air-pressure brake power target value and air-pressure brake power actual value, to a left side The case where rear drive sprocket (28) application air-pressure brake power, is divided into following three kinds.
When left back driving wheel (28) air-pressure brake power target value is greater than air-pressure brake power actual value, brake monitor (35) It is connected by signal line traffic control left back driving wheel ABS solenoid valve (25) port a and port b, port c is closed, the 5th triple valve (30) high pressure gas at the b of port enters left back driving wheel system by left back driving wheel ABS solenoid valve (25) port a and port b It takes offence room (26), to realize the increase of left back driving wheel (28) actual pressure brake force.
When left back driving wheel (28) air-pressure brake power target value is less than air-pressure brake power actual value, brake monitor (35) It is closed by left back driving wheel ABS solenoid valve (25) the port a of signal line traffic control, port b and port c conducting, left back driving wheel system The high pressure gas taken offence at room (26) is discharged into atmosphere by left back driving wheel ABS solenoid valve (25) port b and port c, to realize The reduction of left back driving wheel (28) actual pressure brake force.
When left back driving wheel (28) air-pressure brake power target value is equal to air-pressure brake power actual value, brake monitor (35) It is closed by signal line traffic control left back driving wheel ABS solenoid valve (25) port b and port c, left back driving wheel brake chamber (26) In air pressure remain unchanged, to realize the holding of left back driving wheel (28) actual pressure brake force.
When brake pedal (1), but when not triggering braking energy recovering function.
Rear drive shaft switch electromagnetic valve (5) is closed, between secondary air accumulator (3) port b and the port a of the first triple valve (7) Gas circuit disconnect, the port b of left back driving wheel stacked unidirectional valve (31) 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 rear drive shaft relay valve (8), the port a and port b of rear drive shaft relay valve (8) is connected, main storage High pressure gas in gas tank (4) successively passes through the port e of main air accumulator (4), the port a of rear drive shaft relay valve (8) and port B, the left back driving wheel superposition of port c and port a arrival of the port b and port c of the second triple valve (9), the 6th triple valve (32) The port a of formula check valve (31).
The port b of left back driving wheel stacked unidirectional valve (31) 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 rear drive shaft relay valve (8) and port b, the second threeway The port b and port c of valve (9), the port c and port a of the 6th triple valve (32), left back driving wheel stacked unidirectional valve (31) Port a and port c, the port a and port b of the 5th triple valve (30), the port a of left back driving wheel ABS solenoid valve (25) and end Mouth b enters left back driving wheel brake chamber (26), to be applied by left back driving wheel brake (29) to left back driving wheel (28) Brake force with air pressure capable of being increased.
Releasing to the gentle compacting power of releasing that the releasing of left back driving wheel (28) braking is divided into motor braking power, work Principle is as follows.
When driver loosens the brake (1), entire car controller (34) is controlled by rear axle drive motor controller (22) The motor that system gives left back driving wheel (28) to apply by rear axle driving motor and transmission device (21) by left back jack shaft (24) Brake force reduces, to release the motor braking power of left back driving wheel.
When driver loosens the brake (1), brake valve (2) is closed, and rear drive shaft relay valve (8) disconnects main air accumulator (4) air circuit connection between port e and the second triple valve (9) port b, rear drive shaft switch electromagnetic valve (5) disconnect secondary air accumulator (3) air circuit connection between port b and the first triple valve (7) port a, the high pressure gas in left back driving wheel brake chamber (26) Body passes sequentially through the port b and port a of left back driving wheel ABS solenoid valve (25), the port b of the 5th triple valve (30) and port C, port b and port c, the second triple valve of the port a and port b, the 6th triple valve (32) of left back driving wheel check valve (23) (9) port c and port b enters rear drive shaft relay valve (8), atmosphere is discharged into through rear drive shaft relay valve (8), to release a left side The air-pressure brake power of rear drive sprocket (28) does not apply left back driving wheel ABS solenoid valve (25) control in the process.
When triggering braking energy recovering function, the principle for applying braking to right rear drive sprocket (13) is as follows.
Entire car controller (34) controls rear drive shaft switch electromagnetic valve (5) conducting, the high pressure gas in secondary air accumulator (3) according to It is secondary by the port b of secondary air accumulator (3), the port a and port b of rear drive shaft switch electromagnetic valve (5), the first triple valve (7) Port a and port b reaches the port b of right rear drive sprocket 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 rear drive shaft relay valve (8), the port a and port b of rear drive shaft relay valve (8) is connected, main storage High pressure gas in gas tank (4) successively passes through the port e of main air accumulator (4), the port a of rear drive shaft relay valve (8) and port B, the right rear drive sprocket superposition of port c and port a arrival of the port b and port a of the second triple valve (9), the 4th triple valve (20) The port a of formula check valve (10).
At this point, according to right rear drive sprocket stacked unidirectional valve (10) port a air pressure and right rear drive sprocket stacked unidirectional valve (10) size of port b air pressure is divided into the following two kinds to the case where right rear drive sprocket brake chamber (16) offer brake pressure.
When right rear drive sprocket stacked unidirectional valve (10) port a air pressure is greater than port b air pressure, given by main air accumulator (4) Right rear drive sprocket brake chamber (16) provides high pressure gas；At this point, the high pressure gas in main air accumulator (4) successively passes through main gas storage The port e of tank (4), the port a and port b of rear drive shaft relay valve (8), the port b and port a of the second triple valve (9), Port c and port a, the port a and port c of right rear drive sprocket stacked unidirectional valve (10), third threeway of four triple valves (20) The port a and port b of valve (11), right rear drive sprocket ABS solenoid valve (17) port a and port b enter the braking of right rear drive sprocket Gas chamber (16), so as to apply air-pressure brake power to right rear drive sprocket (13) by right rear drive sprocket brake (12).
When right rear drive sprocket stacked unidirectional valve (10) port a air pressure is less than port b air pressure, given by secondary air accumulator (3) Right rear drive sprocket brake chamber (16) provides high pressure gas；At this point, the high pressure gas in secondary air accumulator (3) successively passes through secondary gas storage The port b of tank (3), the port a and port b of rear drive shaft switch electromagnetic valve (5), the first triple valve (7) port a and port b, Port a and port b, the right rear-guard of the port b and port c of right rear drive sprocket stacked unidirectional valve (10), third triple valve (11) The port a and port b of driving wheel ABS solenoid valve (17), into right rear drive sprocket brake chamber (16), so as to by being driven behind the right side It takes turns brake (12) and applies air-pressure brake power to right rear drive sprocket (13).
For the decoupling control for realizing right rear drive sprocket (13) motor braking power and air-pressure brake power, right rear drive sprocket can be passed through ABS solenoid valve (17) adjusts the size of right rear drive sprocket (13) air-pressure brake power, according to rear axle driving motor and transmission device (21) can be applied to right rear drive sprocket (13) maximum motor brake force and right rear drive sprocket (13) total brake force target value it Between relationship, to right rear drive sprocket (13) apply brake force mode be divided into following two kinds.
Mode one: jack shaft (18) drives after being applied to the right side after rear axle driving motor and transmission device (21) are by the right side When taking turns the maximum motor brake force of (13) and being greater than right rear drive sprocket (13) total brake force target value, the gas of right rear drive sprocket (13) Suppressing power target value is 0, at this point, brake monitor (35) passes through right rear drive sprocket ABS solenoid valve (17) end of signal line traffic control Mouth a is closed, and port b and port c are opened, and disconnects the gas between right rear drive sprocket brake chamber (16) and third triple valve (11) Road connection, right rear drive sprocket brake chamber (16) pass through the port b and port c and atmosphere of right rear drive sprocket ABS solenoid valve (17) It communicates, is applied at this time by jack shaft (18) behind the right side to right rear drive sprocket (13) by rear axle driving motor and transmission device (21) Add required brake force.
Mode two: jack shaft (18) can be applied to right rear-guard after rear axle driving motor and transmission device (21) are by the right side When the maximum motor brake force of driving wheel (13) is less than right rear drive sprocket (13) total brake force target value, rear axle driving motor and transmission Device (21) applies maximum motor brake force to right rear drive sprocket (13) by jack shaft (18) behind the right side.
Right rear drive sprocket (13) air-pressure brake power target value is driven by the total brake force target value of right rear drive sprocket (13) and rear axle Dynamic motor and transmission device (21) are applied to the maximum motor brake force of right rear drive sprocket (13) by jack shaft (18) behind the right side Difference determine, according to the relationship between right rear drive sprocket (13) air-pressure brake power target value and air-pressure brake power actual value, to the right side The case where rear drive sprocket (13) application air-pressure brake power, is divided into following three kinds.
When right rear drive sprocket (13) air-pressure brake power target value is greater than air-pressure brake power actual value, brake monitor (35) It is connected by signal line traffic control right rear drive sprocket ABS solenoid valve (17) port a and port b, port c is closed, third triple valve (11) high pressure gas at the b of port enters right rear drive sprocket system by right rear drive sprocket ABS solenoid valve (17) port a and port b It takes offence room (16), to realize the increase of right rear drive sprocket (13) actual pressure brake force.
When right rear drive sprocket (13) air-pressure brake power target value is less than air-pressure brake power actual value, brake monitor (35) It is closed by right rear drive sprocket ABS solenoid valve (17) the port a of signal line traffic control, port b and port c conducting, right rear drive sprocket system The high pressure gas taken offence at room (16) is discharged into atmosphere by right rear drive sprocket ABS solenoid valve (17) port b and port c, to realize The reduction of right rear drive sprocket (13) actual pressure brake force.
When right rear drive sprocket (13) air-pressure brake power target value is equal to air-pressure brake power actual value, brake monitor (35) It is closed by signal line traffic control right rear drive sprocket ABS solenoid valve (17) port b and port c, right rear drive sprocket brake chamber (16) In air pressure remain unchanged, to realize the holding of right rear drive sprocket (13) actual pressure brake force.
When brake pedal (1), but when not triggering braking energy recovering function.
Rear drive shaft switch electromagnetic valve (5) is closed, between secondary air accumulator (3) port b and the port a of the first triple valve (7) Gas circuit disconnect, the port b of right rear drive sprocket 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 rear drive shaft relay valve (8), the port a and port b of rear drive shaft relay valve (8) is connected, main storage High pressure gas in gas tank (4) successively passes through the port e of main air accumulator (4), the port a of rear drive shaft relay valve (8) and port B, the right rear drive sprocket superposition of port c and port a arrival of the port b and port a of the second triple valve (9), the 4th triple valve (20) The port a of formula check valve (10).
The port b of right rear drive sprocket 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 rear drive shaft relay valve (8) and port b, the second threeway The port b and port a of valve (9), the port c and port a of the 4th triple valve (20), right rear drive sprocket stacked unidirectional valve (10) Port a and port c, the port a of third triple valve (11) and port b, the port a of right rear drive sprocket ABS solenoid valve (17) and end Mouth b enters right rear drive sprocket brake chamber (16), to be applied by right rear drive sprocket brake (12) to right rear drive sprocket (13) Brake force with air pressure capable of being increased.
Releasing to the gentle compacting power of releasing that the releasing of right rear drive sprocket (13) braking is divided into motor braking power, work Principle is as follows.
When driver loosens the brake (1), entire car controller (34) is controlled by rear axle drive motor controller (22) The motor that system gives right rear drive sprocket (13) to apply by rear axle driving motor and transmission device (21) by jack shaft (18) behind the right side Brake force reduces, to release the motor braking power of right rear drive sprocket.
When driver loosens the brake (1), brake valve (2) is closed, and rear drive shaft relay valve (8) disconnects main air accumulator (4) air circuit connection between port e and the second triple valve (9) port b, rear drive shaft switch electromagnetic valve (5) disconnect secondary air accumulator (3) air circuit connection between port b and the first triple valve (7) port a, the high pressure gas in right rear drive sprocket brake chamber (16) Body passes sequentially through the port b and port a of right rear drive sprocket ABS solenoid valve (17), the port b of third triple valve (11) and port C, port b and port c, the second triple valve of the port a and port b, the 4th triple valve (20) of right rear drive sprocket check valve (19) (9) port a and port b enters rear drive shaft relay valve (8), atmosphere is discharged into through rear drive shaft relay valve (8), to release the right side The air-pressure brake power of rear drive sprocket (13) does not apply right rear drive sprocket ABS solenoid valve (17) control in the process.
When triggering braking energy recovering function, the principle for applying braking to left drive wheel (41) is as follows.
Entire car controller (34) controls drive axle switch electromagnetic valve (63) conducting, the high pressure gas in secondary air accumulator (3) Successively by the port c of secondary air accumulator (3), port a and port b, the 12nd triple valve of drive axle switch electromagnetic valve (63) (61) port a and port c reaches the port b of left drive wheel stacked unidirectional valve (39).
High pressure gas in main air accumulator (4) is by the port c of main air accumulator (4), the port b and port c of brake valve (2) Into the control port c of drive axle relay valve (36), the port a and port b of drive axle relay valve (36) is connected, it is main High pressure gas in air accumulator (4) successively pass through the port b of main air accumulator (4), drive axle relay valve (36) port a and Port c and port a the arrival left drive of port b, the port b and port c of the 7th triple valve (37), the 8th triple valve (38) Take turns the port a of stacked unidirectional valve (39).
At this point, according to left drive wheel stacked unidirectional valve (39) port a air pressure and left drive wheel stacked unidirectional valve (39) size of port b air pressure is divided into the following two kinds to the case where left drive wheel brake chamber (44) offer brake pressure.
When left drive wheel stacked unidirectional valve (39) port a air pressure is greater than port b air pressure, given by main air accumulator (4) Left drive wheel brake chamber (44) provides high pressure gas；At this point, the high pressure gas in main air accumulator (4) successively passes through main gas storage The port b of tank (4), the port a and port b of drive axle relay valve (36), the port b and port c of the 7th triple valve (37), Port c and port a, the port a and port c of left drive wheel stacked unidirectional valve (39), the 9th threeway of eight triple valves (38) The port a and port b of valve (40), the port a and port b of left drive wheel ABS solenoid valve (46) enter the braking of left drive wheel Gas chamber (44), so as to apply air-pressure brake power to left drive wheel (41) by left drive wheel brake (42).
When left drive wheel stacked unidirectional valve (39) port a air pressure is less than port b air pressure, given by secondary air accumulator (3) Left drive wheel brake chamber (44) provides high pressure gas；At this point, the high pressure gas in secondary air accumulator (3) successively passes through secondary gas storage The port c of tank (3), the port a and port b of drive axle switch electromagnetic valve (63), the 12nd triple valve (61) port a and Port c, the port b of left drive wheel stacked unidirectional valve (39) and port c, the 9th triple valve (40) port a and port b, The port a and port b of left drive wheel ABS solenoid valve (46), into left drive wheel brake chamber (44), so as to pass through a left side Front driving wheel brake (42) applies air-pressure brake power to left drive wheel (41).
For the decoupling control for realizing left drive wheel (41) motor braking power and air-pressure brake power, left drive wheel can be passed through ABS solenoid valve (46) adjusts the size of left drive wheel (41) air-pressure brake power, according to front axle driving motor and transmission device (48) can be applied to left drive wheel (41) maximum motor brake force and left drive wheel (41) total brake force target value it Between relationship, to left drive wheel (41) apply brake force mode be divided into the following two kinds.
Mode one: current axis driving motor and transmission device (48) pass through left drive semiaxis (45) and are applied to left drive When taking turns the maximum motor brake force of (41) and being greater than or equal to left drive wheel (41) total brake force target value, left drive wheel (41) air-pressure brake power target value is 0, at this point, brake monitor (35) passes through signal line traffic control left drive wheel ABS electromagnetism Valve (46) port a is closed, and port b and port c are opened, and disconnects left drive wheel brake chamber (44) and the 9th triple valve (40) is held Air circuit connection between mouthful b, left drive wheel brake chamber (44) by the port b of left drive wheel ABS solenoid valve (46) and Port c is communicated with atmosphere, gives left front drive by left drive semiaxis (45) by front axle driving motor and transmission device (48) at this time Brake force needed for driving wheel (41) applies.
Mode two: current axis driving motor and transmission device (48) pass through left drive semiaxis (45) and can be applied to left front drive When the maximum motor brake force of driving wheel (41) is less than left drive wheel (41) total brake force target value, front axle driving motor and transmission Device (48) applies maximum motor brake force to left drive wheel (41) by left drive semiaxis (45).
Left drive wheel (41) air-pressure brake power target value is driven by the total brake force target value of left drive wheel (41) and front axle Dynamic motor and transmission device (48) are applied to the maximum motor brake force of left drive wheel (41) by left drive semiaxis (45) Difference determine, according to the relationship between left drive wheel (41) air-pressure brake power target value and air-pressure brake power actual value, to a left side The case where front driving wheel (41) application air-pressure brake power, is divided into following three kinds.
When left drive wheel (41) air-pressure brake power target value is greater than air-pressure brake power actual value, brake monitor (35) It is connected by signal line traffic control left drive wheel ABS solenoid valve (46) port a and port b, port c is closed, the 9th triple valve (40) high pressure gas at the b of port enters left drive wheel system by left drive wheel ABS solenoid valve (46) port a and port b It takes offence room (44), to realize the increase of left drive wheel (41) actual pressure brake force.
When left drive wheel (41) air-pressure brake power target value is less than air-pressure brake power actual value, brake monitor (35) It is closed by signal line traffic control left drive wheel ABS solenoid valve (46) port a, port b and port c conducting, left drive wheel system The high pressure gas taken offence at room (44) is discharged into atmosphere by left drive wheel ABS solenoid valve (46) port b and port c, to realize The reduction of left drive wheel (41) actual pressure brake force.
When left drive wheel (41) air-pressure brake power target value is equal to air-pressure brake power actual value, brake monitor (35) It is closed by signal line traffic control left drive wheel ABS solenoid valve (46) port b and port c, left drive wheel brake chamber (44) In air pressure remain unchanged, to realize the holding of left drive wheel (41) actual pressure brake force.
When brake pedal (1), but when not triggering braking energy recovering function.
Drive axle switch electromagnetic valve (63) is closed, the port a of secondary air accumulator (3) port c and the 12nd triple valve (61) Between gas circuit disconnect, the port b of left drive wheel stacked unidirectional valve (39) is without high pressure gas.
High pressure gas in main air accumulator (4) is by the port c of main air accumulator (4), the port b and port c of brake valve (2) Into the control port c of drive axle relay valve (36), the port a and port b of drive axle relay valve (36) is connected, it is main High pressure gas in air accumulator (4) successively pass through the port b of main air accumulator (4), drive axle relay valve (36) port a and Port c and port a the arrival left drive of port b, the port b and port c of the 7th triple valve (37), the 8th triple valve (38) Take turns the port a of stacked unidirectional valve (39).
The port b of left drive wheel stacked unidirectional valve (39) is closed, port a and port c conducting, in main air accumulator (4) High pressure gas successively pass through the port a and port b, the seven or three of the port b of main air accumulator (4), drive axle relay valve (36) The port b and port c of port valve (37), the port c and port a of the 8th triple valve (38), left drive wheel stacked unidirectional valve (39) end of the port a and port b of port a and port c, the 9th triple valve (40), left drive wheel ABS solenoid valve (46) Mouth a and port b enters left drive wheel brake chamber (44), to give left drive wheel by left drive wheel brake (42) (41) apply air-pressure brake power.
Releasing to the gentle compacting power of releasing that the releasing of left drive wheel (41) braking is divided into motor braking power, work Principle is as follows.
When driver loosens the brake (1), entire car controller (34) is controlled by front axle drive motor controller (49) System is passed through the motor that left drive semiaxis (45) apply to left drive wheel (41) by front axle driving motor and transmission device (48) Brake force reduces, to release the motor braking power of left drive wheel.
When driver loosens the brake (1), brake valve (2) is closed, and drive axle relay valve (36) disconnects main gas storage Air circuit connection between tank (4) port b and the 7th triple valve (37) port b, drive axle switch electromagnetic valve (63) disconnect secondary storage Air circuit connection between gas tank (3) port c and the 12nd triple valve (61) port a, in left drive wheel brake chamber (44) High pressure gas passes sequentially through the port b and port a of left drive wheel ABS solenoid valve (46), the port b of the 9th triple valve (40) With the port b and port c, the 7th of port c, the port a of left drive wheel check valve (47) and port b, the 8th triple valve (38) The port c and port b of triple valve (37) enter drive axle relay valve (36), are discharged into atmosphere through drive axle relay valve (36), To release the air-pressure brake power of left drive wheel (41), left drive wheel ABS solenoid valve (46) is not applied in the process Control.
When triggering braking energy recovering function, the principle for applying braking to right front driving wheel (57) is as follows.
Entire car controller (34) controls drive axle switch electromagnetic valve (63) conducting, the high pressure gas in secondary air accumulator (3) Successively by the port c of secondary air accumulator (3), port a and port b, the 12nd triple valve of drive axle switch electromagnetic valve (63) (61) port a and port b reaches the port b of right front driving wheel stacked unidirectional valve (59).
High pressure gas in main air accumulator (4) is by the port c of main air accumulator (4), the port b and port c of brake valve (2) Into the control port c of drive axle relay valve (36), the port a and port b of drive axle relay valve (36) is connected, it is main High pressure gas in air accumulator (4) successively pass through the port b of main air accumulator (4), drive axle relay valve (36) port a and The right preceding driving of port c and port a arrival of port b, the port b and port a of the 7th triple valve (37), the 11st triple valve (60) Take turns the port a of stacked unidirectional valve (59).
At this point, according to right front driving wheel stacked unidirectional valve (59) port a air pressure and right front driving wheel stacked unidirectional valve (59) size of port b air pressure is divided into the following two kinds to the case where right front driving wheel brake chamber (53) offer brake pressure.
When right front driving wheel stacked unidirectional valve (59) port a air pressure is greater than port b air pressure, given by main air accumulator (4) Right front driving wheel brake chamber (53) provides high pressure gas；At this point, the high pressure gas in main air accumulator (4) successively passes through main gas storage The port b of tank (4), the port a and port b of drive axle relay valve (36), the port b and port a of the 7th triple valve (37), The port a and port c, the 13rd of the port c and port a of 11 triple valves (60), right front driving wheel stacked unidirectional valve (59) The port a and port b of port valve (58), right front driving wheel ABS solenoid valve (51) port a and port b enter right front driving wheel system It takes offence room (53), so as to apply air-pressure brake power to right front driving wheel (57) by right front driving wheel brake (56).
When right front driving wheel stacked unidirectional valve (59) port a air pressure is less than port b air pressure, given by secondary air accumulator (3) Right front driving wheel brake chamber (53) provides high pressure gas；At this point, the high pressure gas in secondary air accumulator (3) successively passes through secondary gas storage The port c of tank (3), the port a and port b of drive axle switch electromagnetic valve (63), the 12nd triple valve (61) port a and Port b, the port b of right front driving wheel stacked unidirectional valve (59) and port c, the tenth triple valve (58) port a and port b, The port a and port b of right front driving wheel ABS solenoid valve (51), into right front driving wheel brake chamber (53), so as to pass through the right side Front driving wheel brake (56) applies air-pressure brake power to right front driving wheel (57).
For the decoupling control for realizing right front driving wheel (57) motor braking power and air-pressure brake power, right front driving wheel can be passed through ABS solenoid valve (51) adjusts the size of air-pressure brake power in right front driving wheel (57), according to front axle driving motor and transmission device (48) can be applied to right front driving wheel (57) maximum motor brake force and right front driving wheel (57) total brake force target value it Between relationship, to right front driving wheel (57) apply brake force mode be divided into following two kinds.
Mode one: current axis driving motor and transmission device (48) drive before being applied to the right side by jack shaft (52) before right When taking turns the maximum motor brake force of (57) and being greater than right front driving wheel (57) total brake force target value, the gas of right front driving wheel (57) Suppressing power target value is 0, at this point, brake monitor (35) passes through right front driving wheel ABS solenoid valve (51) end of signal line traffic control Mouth a is closed, and port b and port c are opened, and disconnects the gas between right front driving wheel brake chamber (53) and the tenth triple valve (58) Road connection, right front driving wheel brake chamber (53) pass through the port b and port c and atmosphere of right front driving wheel ABS solenoid valve (51) It communicates, is applied at this time by jack shaft (52) before the right side to right front driving wheel (57) by front axle driving motor and transmission device (48) Add required brake force.
Mode two: current axis driving motor and transmission device (48) can be applied to right forerunner by jack shaft (52) before right When the maximum motor brake force of driving wheel (57) is less than right front driving wheel (57) total brake force target value, front axle driving motor and transmission Device (48) applies maximum motor brake force to right front driving wheel (57) by jack shaft (52) before the right side.
Right front driving wheel (57) air-pressure brake power target value is driven by the total brake force target value of right front driving wheel (57) and front axle Dynamic motor and transmission device (48) are applied to the maximum motor brake force of right front driving wheel (57) by jack shaft (52) before the right side Difference determine, according to the relationship between right front driving wheel (57) air-pressure brake power target value and air-pressure brake power actual value, to the right side The case where front driving wheel (57) application air-pressure brake power, is divided into following three kinds.
When right front driving wheel (57) air-pressure brake power target value is greater than air-pressure brake power actual value, brake monitor (35) It is connected by signal line traffic control right front driving wheel ABS solenoid valve (51) port a and port b, port c is closed, the tenth triple valve (58) high pressure gas at the b of port enters right front driving wheel system by right front driving wheel ABS solenoid valve (51) port a and port b It takes offence room (53), to realize the increase of right front driving wheel (57) actual pressure brake force.
When right front driving wheel (57) air-pressure brake power target value is less than air-pressure brake power actual value, brake monitor (35) It is closed by right front driving wheel ABS solenoid valve (51) the port a of signal line traffic control, port b and port c conducting, right front driving wheel system The high pressure gas taken offence at room (53) is discharged into atmosphere by right front driving wheel ABS solenoid valve (51) port b and port c, to realize The reduction of right front driving wheel (57) actual pressure brake force.
When right front driving wheel (57) air-pressure brake power target value is equal to air-pressure brake power actual value, brake monitor (35) It is closed by signal line traffic control right front driving wheel ABS solenoid valve (51) port b and port c, right front driving wheel brake chamber (53) In air pressure remain unchanged, to realize the holding of right front driving wheel (57) actual pressure brake force.
When brake pedal (1), but when not triggering braking energy recovering function.
Drive axle switch electromagnetic valve (63) is closed, the port a of secondary air accumulator (3) port c and the 12nd triple valve (61) Between gas circuit disconnect, the port b of right front driving wheel stacked unidirectional valve (59) is without high pressure gas.
High pressure gas in main air accumulator (4) is by the port c of main air accumulator (4), the port b and port c of brake valve (2) Into the control port c of drive axle relay valve (36), the port a and port b of drive axle relay valve (36) is connected, main storage High pressure gas in gas tank (4) successively passes through the port b of main air accumulator (4), the port a of drive axle relay valve (36) and end Mouthful b, the port b and port a of the 7th triple valve (37), the 11st triple valve (60) port c and port a reach right front driving wheel The port a of stacked unidirectional valve (59).
The port b of right front driving wheel stacked unidirectional valve (59) is closed, port a and port c conducting, in main air accumulator (4) High pressure gas successively pass through the port a and port b, the seven or three of the port b of main air accumulator (4), drive axle relay valve (36) The port b and port a of port valve (37), the port c and port a of the 11st triple valve (60), right front driving wheel stacked unidirectional valve (59) the port a and port b of port a and port c, the tenth triple valve (58), right front driving wheel ABS solenoid valve (51) end Mouth a and port b enters right front driving wheel brake chamber (53), to give right front driving wheel by right front driving wheel brake (56) (57) apply air-pressure brake power.
Releasing to the gentle compacting power of releasing that the releasing of right front driving wheel (57) braking is divided into motor braking power, work Principle is as follows.
When driver loosens the brake (1), entire car controller (34) is controlled by front axle drive motor controller (49) The motor that system gives right front driving wheel (57) to apply by front axle driving motor and transmission device (48) by jack shaft (52) before the right side Brake force reduces, to release the motor braking power of right front driving wheel.
When driver loosens the brake (1), brake valve (2) is closed, and drive axle relay valve (36) disconnects main gas storage Air circuit connection between tank (4) port b and the 7th triple valve (37) port b, drive axle switch electromagnetic valve (63) disconnect secondary storage Air circuit connection between gas tank (3) port c and the 12nd triple valve (61) port a, in right front driving wheel brake chamber (53) High pressure gas passes sequentially through the port b and port a of right front driving wheel ABS solenoid valve (51), the port b of the tenth triple valve (58) With port c, the port a of right front driving wheel check valve (50) and port b, the port b and port c of the 11st triple valve (60), The port a and port b of seven triple valves (37) enter drive axle relay valve (36), are discharged into greatly through drive axle relay valve (36) Gas is not applied right front driving wheel ABS solenoid valve (51) in the process to release the air-pressure brake power of right front driving wheel (57) Add control.
To rear-guard in the four-wheel centralized driving brake energy recovering system of electric vehicle based on stacked unidirectional valve and check valve Moving axis switch electromagnetic valve (5), drive axle switch electromagnetic valve (63), right rear drive sprocket stacked unidirectional valve (10), left back driving After taking turns stacked unidirectional valve (31), right front driving wheel stacked unidirectional valve (59), left drive wheel stacked unidirectional valve (39), the right side Driving wheel check valve (19), left back driving wheel check valve (23), right front driving wheel check valve (50), left drive wheel check valve (47) work characteristics is described below.
When the non-brake pedal of driver (1), rear drive shaft switch electromagnetic valve (5) is in an off state, and the one or three Without high pressure gas at the port a of port valve (7)；When driver's brake pedal (1) but when not triggering braking energy recovering function, Rear drive shaft switch electromagnetic valve (5) is in an off state, without high pressure gas at the port a of the first triple valve (7)；When driver steps on When lower brake pedal (1) and triggering braking energy recovering function, rear drive shaft switch electromagnetic valve (5) is in the conductive state, and first There is high pressure gas at the port a of triple valve (7).
When the non-brake pedal of driver (1), drive axle switch electromagnetic valve (63) is in an off state, and the 12nd Without high pressure gas at the port a of triple valve (61)；Braking energy recovering function is not triggered when driver's brake pedal (1) but When, drive axle switch electromagnetic valve (63) is in an off state, without high pressure gas at the port a of the 12nd triple valve (61)；When When driver's brake pedal (1) and triggering braking energy recovering function, drive axle switch electromagnetic valve (63) is on State has high pressure gas at the port a of the 12nd triple valve (61).
There are three ports: air inlet port a, air inlet port b and air outlet for right rear drive sprocket 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 rear drive sprocket stacked unidirectional valve (10), from right rear drive sprocket 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 rear drive shaft servo Valve (8) flows to right rear drive sprocket brake chamber (16), cannot reversely be connected；When the air pressure of air inlet port a is greater than air inlet port b When, port a and port c conducting, port b are turned off；When the air pressure of air inlet port a is less than air inlet port b, port b and port c are led It is logical, port a shutdown.
There are three ports: air inlet port a, air inlet port b and air outlet for left back driving wheel stacked unidirectional valve (31) tool C, gas can only be flowed into from the air inlet port a and air inlet port b of left back driving wheel stacked unidirectional valve (31), from left back driving wheel The air outlet c of stacked unidirectional valve (31) flows out, so that controlling gas can only be from the first triple valve (7) and rear drive shaft servo Valve (8) flows to left back driving wheel brake chamber (26), cannot reversely be connected；When the air pressure of air inlet port a is greater than air inlet port b When, port a and port c conducting, port b are turned off；When the air pressure of air inlet port a is less than air inlet port b, port b and port c are led It is logical, port a shutdown.
There are three ports: air inlet port a, air inlet port b and air outlet for right front driving wheel stacked unidirectional valve (59) tool C, gas can only be flowed into from the air inlet port a and air inlet port b of right front driving wheel stacked unidirectional valve (59), from right front driving wheel The air outlet c of stacked unidirectional valve (59) flows out, so that controlling gas can only be from the 12nd triple valve (61) or drive axle Relay valve (36) flows to right front driving wheel brake chamber (53), cannot reversely be connected；When the air pressure of air inlet port a is greater than inlet end When mouth b, port a and port c conducting, port b shutdown；When the air pressure of air inlet port a is less than air inlet port b, port b and end Mouth c conducting, port a shutdown.
There are three ports for left drive wheel stacked unidirectional valve (39) tool: air inlet port a, air inlet port b and air outlet C, gas can only be flowed into from the air inlet port a and air inlet port b of left drive wheel stacked unidirectional valve (39), from left drive wheel The air outlet c of stacked unidirectional valve (39) flows out, so that controlling gas can only be from the 12nd triple valve (61) or drive axle Relay valve (36) flows to left drive wheel brake chamber (44), cannot reversely be connected；When the air pressure of air inlet port a is greater than inlet end When mouth b, port a and port c conducting, port b shutdown；When the air pressure of air inlet port a is less than air inlet port b, port b and end Mouth c conducting, port a shutdown.
There are two ports for right rear drive sprocket check valve (19) tool: air inlet port a and air outlet b, gas can only be from air inlets Port a flows to air outlet b, cannot reversely be connected, and can only flow to from right rear drive sprocket brake chamber (16) for controlling gas Rear drive shaft relay valve (8).
There are two ports for left back driving wheel check valve (23) tool: air inlet port a and air outlet b, gas can only be from air inlets Port a flows to air outlet b, cannot reversely be connected, and can only flow to from left back driving wheel brake chamber (26) for controlling gas Rear drive shaft relay valve (8).
There are two ports for right front driving wheel check valve (50) tool: air inlet port a and air outlet b, gas can only be from air inlets Port a flows to air outlet b, cannot reversely be connected, and can only flow to from right front driving wheel brake chamber (53) for controlling gas Drive axle relay valve (36).
There are two ports for left drive wheel check valve (47) tool: air inlet port a and air outlet b, gas can only be from air inlets Port a flows to air outlet b, cannot reversely be connected, and can only flow to from left drive wheel brake chamber (44) for controlling gas Drive axle relay valve (36).
By above-mentioned discussion it is found that by increasing secondary air accumulator (3) in existing brake energy recovering system, rear drive shaft is opened Powered-down magnet valve (5), the first triple valve (7), rear drive shaft relay valve (8), the second triple valve (9), right rear drive sprocket superposing type list To valve (10), third triple valve (11), right rear drive sprocket brake-pressure sensor (15), right rear drive sprocket check valve (19), Four triple valves (20), left back driving wheel check valve (23), the 5th triple valve (30), left back driving wheel stacked unidirectional valve (31), 6th triple valve (32), drive axle relay valve (36), the 7th triple valve (37), the 8th triple valve (38), left drive wheel are folded Before adding formula check valve (39), the 9th triple valve (40), left drive wheel check valve (47), right front driving wheel check valve (50), the right side Driving wheel brake-pressure sensor (54), the tenth triple valve (58), right front driving wheel stacked unidirectional valve (59), the 11st threeway The portions such as valve (60), the 12nd triple valve (61), brake pedal displacement sensor (62) and drive axle switch electromagnetic valve (63) Part, making each driving wheel brake circuit tool, there are two independent high-pressure air source and double back line structures, when driver's brake pedal (1) when and without triggering braking energy recovering function, left back driving wheel (28), right rear drive sprocket (13), left drive wheel (41) It is provided with high pressure gas needed for right front driving wheel (57) by main air accumulator (4)；When driver's brake pedal (1) and triggering system When energy recycles function, left back driving wheel (28), right rear drive sprocket (13), left drive wheel (41) and right front driving wheel (57) Required high pressure 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 existing side When continuously being braked present in case, because the relatively low bring driving wheel coupling braking force response rate of bleed pressure is slow, and lag behind The critical issue of demand brake force.

Claims (2)

1. a kind of four-wheel centralized driving brake energy recovering system of electric vehicle based on stacked unidirectional valve and check valve, feature It is: by brake pedal (1), brake valve (2), secondary air accumulator (3), main air accumulator (4), rear drive shaft switch electromagnetic valve (5), sky Air compressor (6), the first triple valve (7), rear drive shaft relay valve (8), the second triple valve (9), right rear drive sprocket superposing type list To valve (10), third triple valve (11), right rear drive sprocket wheel speed sensors (14), right rear drive sprocket brake-pressure sensor (15), right rear drive sprocket brake chamber (16), right rear drive sprocket ABS solenoid valve (17), right rear drive sprocket check valve (19), the 4th Triple valve (20), rear axle driving motor and transmission device (21), rear axle drive motor controller (22), left back driving wheel check valve (23), left back driving wheel ABS solenoid valve (25), left back driving wheel brake chamber (26), left back driving wheel wheel speed sensors (27), It is 5th triple valve (30), left back driving wheel stacked unidirectional valve (31), the 6th triple valve (32), battery management system (33), whole Vehicle controller (34), brake monitor (35), drive axle relay valve (36), the 7th triple valve (37), the 8th triple valve (38), Left drive wheel stacked unidirectional valve (39), the 9th triple valve (40), left drive wheel wheel speed sensors (43), left drive wheel Brake chamber (44), left drive wheel ABS solenoid valve (46), left drive wheel check valve (47), front axle driving motor and transmission Device (48), front axle drive motor controller (49), right front driving wheel check valve (50), right front driving wheel ABS solenoid valve (51), Right front driving wheel brake chamber (53), right front driving wheel brake-pressure sensor (54), right front driving wheel wheel speed sensors (55), Tenth triple valve (58), right front driving wheel stacked unidirectional valve (59), the 11st triple valve (60), the 12nd triple valve (61), Brake pedal displacement sensor (62), drive axle switch electromagnetic valve (63) 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 drive axle servo of brake valve (2) The control port c of valve (36) is connected by gas circuit, the air outlet d of brake valve (2) and the control terminal of rear drive shaft relay valve (8) Mouth 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 rear drive shaft switch electromagnetic valve (5), rear-guard The air outlet b of moving axis switch electromagnetic valve (5) is connected with the air inlet port a of the first triple valve (7) by gas circuit, the first triple valve (7) air outlet b is connected by gas circuit with the air inlet port b of right rear drive sprocket stacked unidirectional valve (10), the first triple valve (7) air outlet c is connected by gas circuit with the air inlet port b of left back driving wheel stacked unidirectional valve (31)；Rear drive shaft after The port a of dynamic valve (8) is connected with the air outlet e of main air accumulator (4) by gas circuit, and the port b of rear drive shaft relay valve (8) is logical Gas circuit is crossed to be connected with the port b of the second triple valve (9)；
The port a of second triple valve (9) is connected by gas circuit with the port c of the 4th triple valve (20), the 4th triple valve (20) Port a is connected by gas circuit with the air inlet port a of right rear drive sprocket stacked unidirectional valve (10), the port of the 4th triple valve (20) B is connected by gas circuit with the air outlet b of right rear drive sprocket check valve (19), and right rear drive sprocket stacked unidirectional valve (10) goes out Gas port c is connected with the port a of third triple valve (11) by gas circuit, the air inlet port a of right rear drive sprocket check valve (19) with The port c of third triple valve (11) is connected by gas circuit, the port b of third triple valve (11) and right rear drive sprocket ABS solenoid valve (17) air inlet port a is connected by gas circuit, the air inlet port b of right rear drive sprocket ABS solenoid valve (17) and right rear drive sprocket system Take offence room (16) by gas circuit be connected；
Right rear drive sprocket brake-pressure sensor (15) is installed on right rear drive sprocket brake chamber (16)；
The port c of second triple valve (9) is connected by gas circuit with the port c of the 6th triple valve (32), the 6th triple valve (32) Port a is connected by gas circuit with the air inlet port a of left back driving wheel stacked unidirectional valve (31), the port of the 6th triple valve (32) B is connected by gas circuit with the air outlet b of left back driving wheel check valve (23), and left back driving wheel stacked unidirectional valve (31) goes out Gas port c is connected with the port a of the 5th triple valve (30) by gas circuit, the air inlet port a of left back driving wheel check valve (23) with The port c of 5th triple valve (30) is connected by gas circuit, the port b and left back driving wheel ABS solenoid valve of the 5th triple valve (30) (25) air inlet port a is connected by gas circuit, the air inlet port b of left back driving wheel ABS solenoid valve (25) and left back driving wheel system Take offence room (26) by gas circuit be connected；
The air outlet c of secondary air accumulator (3) is connected by gas circuit with the air inlet port a of drive axle switch electromagnetic valve (63), preceding The air outlet b of drive shaft switch electromagnetic valve (63) is connected with the air inlet port a of the 12nd triple valve (61) by gas circuit, and the tenth The air outlet b of two triple valves (61) is connected by gas circuit with the air inlet port b of right front driving wheel stacked unidirectional valve (59), the The air outlet c of 12 triple valves (61) is connected by gas circuit with the air inlet port b of left drive wheel stacked unidirectional valve (39)；
The port a of drive axle relay valve (36) is connected with the air outlet b of main air accumulator (4) by gas circuit, drive axle after The port b of dynamic valve (36) is connected by gas circuit with the port b of the 7th triple valve (37)；
The port a of 7th triple valve (37) is connected by gas circuit with the port c of the 11st triple valve (60), the 11st triple valve (60) port a is connected by gas circuit with the air inlet port a of right front driving wheel stacked unidirectional valve (59), the 11st triple valve (60) port b is connected by gas circuit with the air outlet b of right front driving wheel check valve (50), and right front driving wheel superposing type is unidirectional The air outlet c of valve (59) is connected with the port a of the tenth triple valve (58) by gas circuit, right front driving wheel check valve (50) into Gas port a is connected with the port c of the tenth triple valve (58) by gas circuit, the port b and right front driving wheel of the tenth triple valve (58) The air inlet port a of ABS solenoid valve (51) is connected by gas circuit, the air inlet port b of right front driving wheel ABS solenoid valve (51) and it is right before Driving wheel brake chamber (53) is connected by gas circuit；
Right front driving wheel brake-pressure sensor (54) is installed on right front driving wheel brake chamber (53)；
The port c of 7th triple valve (37) is connected by gas circuit with the port c of the 8th triple valve (38), the 8th triple valve (38) Port a is connected by gas circuit with the air inlet port a of left drive wheel stacked unidirectional valve (39), the port of the 8th triple valve (38) B is connected by gas circuit with the air outlet b of left drive wheel check valve (47), and left drive wheel stacked unidirectional valve (39) goes out Gas port c is connected with the port a of the 9th triple valve (40) by gas circuit, the air inlet port a of left drive wheel check valve (47) with The port c of 9th triple valve (40) is connected by gas circuit, the port b and left drive wheel ABS solenoid valve of the 9th triple valve (40) (46) air inlet port a is connected by gas circuit, the air inlet port b and left drive wheel system of left drive wheel ABS solenoid valve (46) Take offence room (44) by gas circuit be connected；
Right rear drive sprocket wheel speed sensors (14), left back driving wheel wheel speed sensors (27), left drive wheel wheel speed sensors (43), right front driving wheel wheel speed sensors (55) are connected by signal wire with brake monitor (35)；
Right rear drive sprocket ABS solenoid valve (17), left back driving wheel ABS solenoid valve (25), left drive wheel ABS solenoid valve (46), Right front driving wheel ABS solenoid valve (51) is connected by signal wire with brake monitor (35)；
Rear drive shaft switch electromagnetic valve (5), right rear drive sprocket brake-pressure sensor (15), right front driving wheel brake pressure sensing Device (54), brake pedal displacement sensor (62) and drive axle switch electromagnetic valve (63) pass through signal wire and entire car controller (34) it is connected；
Rear axle drive motor controller (22), battery management system (33), entire car controller (34), brake monitor (35) and before Axis drive motor controller (49) is connected by CAN bus.
2. the four-wheel centralized driving electric vehicle brake power according to claim 1 based on stacked unidirectional valve and check valve Recovery system, entire car controller (34) are based on speed, the brake pedal displacement biography that brake monitor (35) are exported by CAN bus The battery permission maximum charge that pedal displacement signal, the battery management system (33) of sensor (62) output are exported by CAN bus Electric current, the rear axle driving motor and transmission device (21) that rear axle drive motor controller (22) is exported by CAN bus can mention The maximum motor brake force of confession, the front axle driving motor and transmission that front axle drive motor controller (49) is exported by CAN bus The maximum motor brake force that device (48) can be provided judges whether to trigger braking energy recovering function, and controls rear-guard accordingly Moving axis switch electromagnetic valve (5) and drive axle switch electromagnetic valve (63), it is characterised in that:
When brake pedal and triggering braking energy recovering function, entire car controller (34) controls rear drive shaft and switchs electromagnetism Valve (5) conducting, the port b of secondary air accumulator (3) are connected with the gas circuit between the port a of the first triple valve (7)；Entire car controller (34) control drive axle switch electromagnetic valve (63) conducting, the port c of secondary air accumulator (3) and the port of the 12nd triple valve (61) Gas circuit conducting between a；
When brake pedal but when not triggering braking energy recovering function, entire car controller (34) controls rear drive shaft switch electricity Magnet valve (5) shutdown, the gas circuit between the port b of secondary air accumulator (3) and the port a of the first triple valve (7) are not turned on；Full-vehicle control Device (34) controls drive axle switch electromagnetic valve (63) shutdown, the port c of secondary air accumulator (3) and the end of the 12nd triple valve (61) Gas circuit between mouth a is not turned on；
When driver loosens the brake (1), entire car controller (34) controls rear drive shaft switch electromagnetic valve (5) and disconnects secondary storage Air circuit connection between gas tank (3) port b and the first triple valve (7) port a；Entire car controller (34) controls drive axle switch Solenoid valve (63) disconnects the air circuit connection between pair air accumulator (3) port c and the 12nd triple valve (61) port a.
CN201910429070.1A 2019-05-22 2019-05-22 Four-wheel centralized drive electric vehicle braking energy recovery system based on stacked one-way valve and one-way valve Active CN110103918B (en)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2797145Y (en) * 2004-11-23 2006-07-19 山东时风（集团）有限责任公司 Single air chamber biloop pneumatic brake device
EP2535233A2 (en) * 2011-06-15 2012-12-19 ArvinMeritor Technology, LLC Regenerative air brake module
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
CN206598840U (en) * 2017-03-08 2017-10-31 吉林大学 A kind of Pneumatic braking system with active brake function
CN107757379A (en) * 2017-11-16 2018-03-06 吉林大学 A kind of decoupling type brake energy recovering system and its control method
CN208484677U (en) * 2018-06-27 2019-02-12 浙江科力车辆控制系统有限公司 A kind of brake system of trailer

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2797145Y (en) * 2004-11-23 2006-07-19 山东时风（集团）有限责任公司 Single air chamber biloop pneumatic brake device
EP2535233A2 (en) * 2011-06-15 2012-12-19 ArvinMeritor Technology, LLC Regenerative air brake module
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
CN107757379A (en) * 2017-11-16 2018-03-06 吉林大学 A kind of decoupling type brake energy recovering system and its control method
CN208484677U (en) * 2018-06-27 2019-02-12 浙江科力车辆控制系统有限公司 A kind of brake system of trailer

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