CN110103921A - Two-wheeled acoustic filed brake energy recovering system of electric vehicle based on stacked unidirectional valve and check valve - Google Patents

Two-wheeled acoustic filed brake energy recovering system of electric vehicle based on stacked unidirectional valve and check valve Download PDF

Info

Publication number
CN110103921A
CN110103921A CN201910429114.0A CN201910429114A CN110103921A CN 110103921 A CN110103921 A CN 110103921A CN 201910429114 A CN201910429114 A CN 201910429114A CN 110103921 A CN110103921 A CN 110103921A
Authority
CN
China
Prior art keywords
driving wheel
port
valve
brake
gas circuit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201910429114.0A
Other languages
Chinese (zh)
Other versions
CN110103921B (en
Inventor
杨坤
王杰
谭迪
王有镗
马子祥
贾夕杰
刘庆新
王鑫恫
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shandong University of Technology
Original Assignee
Shandong University of Technology
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shandong University of Technology filed Critical Shandong University of Technology
Priority to CN201910429114.0A priority Critical patent/CN110103921B/en
Publication of CN110103921A publication Critical patent/CN110103921A/en
Application granted granted Critical
Publication of CN110103921B publication Critical patent/CN110103921B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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 two-wheeled acoustic filed 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 is directed to the characteristics of two-wheeled acoustic filed electric bicycle drive wheel motor braking power Independent adjustable, by increasing secondary air accumulator in the existing decoupling type brake energy recovering system based on air pressure ABS solenoid valve, switch electromagnetic valve, triple valve, driving wheel stacked unidirectional valve, driving wheel check valve, the components such as driving wheel brake-pressure sensor, 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 air pressure may be selected and provide high pressure gas for driving wheel brake chamber, when continuously being braked present in existing scheme to efficiently solve, because of the relatively low bring driving wheel coupling braking force response rate of bleed pressure Slowly, and the critical issue of demand brake force is lagged behind.

Description

Two-wheeled acoustic filed 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 two-wheeled acoustic filed 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, the driving method of electric vehicle can be divided into traditional centralized driving mode and distributed driving method, with concentration Driving method is compared, and distribution driving has the advantages such as transmission efficiency high, space layout is flexible, dynamic property is strong, good economy performance, together When also have driving wheel motor braking power have Independent adjustable advantage, this for further increase its Brake energy recovery rate and Insensitivity provides the foundation, therefore develops the decoupling type Brake energy recovery for being suitable for distributed new electric commercial vehicle System has stronger practical value.
Summary of the invention
The present invention is having the decoupling type brake energy recovering system scheme based on air pressure ABS solenoid valve regarding to the issue above On the basis of a kind of two-wheeled acoustic filed 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), switch electromagnetic valve (5), the first triple valve in existing brake energy recovering system (7), drive shaft relay valve (8), the second triple valve (9), right driving wheel stacked unidirectional valve (10), third triple valve (11), the right side Driving wheel brake-pressure sensor (17), right driving wheel check valve (20), the 4th triple valve (21), the 5th triple valve (22), a left side Driving wheel check valve (23), left driving wheel brake-pressure sensor (26), the 6th triple valve (32), left driving wheel superposing type are unidirectional The components such as valve (33), right non-driving wheel brake-pressure sensor (46) and brake pedal displacement sensor (50), make each driving wheel There are two independent high-pressure air source and double back line structures for brake circuit tool, and when triggering Brake energy recovery, can pass through control One higher gas source of air pressure of Systematic selection processed provides high pressure gas for brake chamber, thus when effectively solving continuous braking, gas The problem of pressure relatively low bring air pressure brake-force control speed in source reduces.
A kind of two-wheeled acoustic filed 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), switch electromagnetic valve (5), air compressor (6), first Triple valve (7), drive shaft relay valve (8), the second triple valve (9), right driving wheel stacked unidirectional valve (10), third triple valve (11), right driving wheel wheel speed sensors (14), right driving wheel driving motor and transmission device (15), right driving wheel driving motor control Device (16) processed, right driving wheel brake-pressure sensor (17), right driving wheel brake chamber (18), right driving wheel ABS solenoid valve (19), right driving wheel check valve (20), the 4th triple valve (21), the 5th triple valve (22), left driving wheel check valve (23), left drive Driving wheel ABS solenoid valve (24), left driving wheel brake chamber (25), left driving wheel brake-pressure sensor (26), left driving wheel drive Dynamic electric machine controller (27), left driving wheel driving motor and transmission device (28), left driving wheel wheel speed sensors (29), the six or three Port valve (32), left driving wheel stacked unidirectional valve (33), battery management system (34), entire car controller (35), brake monitor (36), nonpowered axle relay valve (37), the 7th triple valve (38), left non-driving wheel wheel speed sensors (41), left non-driving wheel system It takes offence room (42), left non-driving wheel ABS solenoid valve (43), right non-driving wheel ABS solenoid valve (44), right non-driving wheel brake chamber (45), right non-driving wheel brake-pressure sensor (46), right non-driving wheel wheel speed sensors (47), brake pedal displacement sensing Device (50) composition.
The air outlet b and main air accumulator (4) air inlet port a of air compressor (6) pass through air circuit connection, air compressor (6) the air inlet port a of air outlet a and secondary air accumulator (3) pass through air circuit connection.
The air inlet port a of brake valve (2) is connected with the air outlet d of main air accumulator (4) by gas circuit, brake valve (2) Air inlet port b is connected with the air outlet c of main air accumulator (4) by gas circuit, the air outlet c and nonpowered axle of brake valve (2) The control port c of relay valve (37) is connected by gas circuit, the air outlet d of brake valve (2) and the control of drive shaft relay valve (8) Port c is connected by gas circuit.
The air outlet b of secondary air accumulator (3) is connected by gas circuit with the air inlet port a of switch electromagnetic valve (5), and electromagnetism is switched The air outlet b of valve (5) is connected with the air inlet port a of the first triple valve (7) by gas circuit, the outlet side of the first triple valve (7) Mouth b is connected by gas circuit with the air inlet port b of right driving wheel stacked unidirectional valve (10), the air outlet of the first triple valve (7) C is connected by gas circuit with the air inlet port b of left driving wheel stacked unidirectional valve (33).
The port a of drive shaft relay valve (8) is connected with the air outlet e of main air accumulator (4) by gas circuit, drive shaft servo The port b of valve (8) is connected by gas circuit with the port b of the second triple valve (9).
The port a of second triple valve (9) is connected by gas circuit with the port c of the 4th triple valve (21), the 4th triple valve (21) port a is connected by gas circuit with the air inlet port a of right driving wheel stacked unidirectional valve (10), the 4th triple valve (21) Port b be connected with the air outlet b of right driving wheel check valve (20) by gas circuit, right driving wheel stacked unidirectional valve (10) Air outlet c is connected with the port a of third triple valve (11) by gas circuit, the air inlet port a of right driving wheel check valve (20) with The port c of third triple valve (11) is connected by gas circuit, port b and right driving wheel the ABS solenoid valve of third triple valve (11) (19) air inlet port a is connected by gas circuit, and the air inlet port b and right driving wheel of right driving wheel ABS solenoid valve (19) brake gas Room (18) is connected by gas circuit.
Right driving wheel brake-pressure sensor (17) are installed on right driving wheel brake chamber (18).
The port c of second triple valve (9) is connected by gas circuit with the port c of the 5th triple valve (22), the 5th triple valve (22) port a is connected by gas circuit with the air inlet port a of left driving wheel stacked unidirectional valve (33), the 5th triple valve (22) Port b be connected with the air outlet b of left driving wheel check valve (23) by gas circuit, left driving wheel stacked unidirectional valve (33) Air outlet c is connected with the port a of the 6th triple valve (32) by gas circuit, the air inlet port a of left driving wheel check valve (23) with The port c of 6th triple valve (32) is connected by gas circuit, port b and left driving wheel the ABS solenoid valve of the 6th triple valve (32) (24) air inlet port a is connected by gas circuit, and the air inlet port b and left driving wheel of left driving wheel ABS solenoid valve (24) brake gas Room (25) is connected by gas circuit.
Left driving wheel brake-pressure sensor (26) are installed on left driving wheel brake chamber (25).
The port a of nonpowered axle relay valve (37) is connected with the air outlet b of main air accumulator (4) by gas circuit, non-driven The port b of axis relay valve (37) is connected by gas circuit with the port b of the 7th triple valve (38), the port c of the 7th triple valve (38) Be connected by gas circuit with the air inlet port a of left non-driving wheel ABS solenoid valve (43), left non-driving wheel ABS solenoid valve (43) into Gas port b is connected with left non-driving wheel brake chamber (42) by gas circuit, and the port a of the 7th triple valve (38) passes through gas circuit and the right side The air inlet port a of non-driving wheel ABS solenoid valve (44) is connected, and the air inlet port b of right non-driving wheel ABS solenoid valve (44) and the right side are non- Driving wheel brake chamber (45) is connected by gas circuit.
Right non-driving wheel brake-pressure sensor (46) is installed on right non-driving wheel brake chamber (45).
Right driving wheel wheel speed sensors (14), left driving wheel wheel speed sensors (29), left non-driving wheel wheel speed sensors (41), right non-driving wheel wheel speed sensors (47) are connected by signal wire with brake monitor (36).
Right driving wheel ABS solenoid valve (19), left driving wheel ABS solenoid valve (24), left non-driving wheel ABS solenoid valve (43), Right non-driving wheel ABS solenoid valve (44) is connected by signal wire with brake monitor (36).
Switch electromagnetic valve (5), right driving wheel brake-pressure sensor (17), left driving wheel brake-pressure sensor (26), Right non-driving wheel brake-pressure sensor (46) and brake pedal displacement sensor (50) pass through signal wire and entire car controller (35) it is connected.
Right driving wheel drive motor controller (16), left driving wheel drive motor controller (27), battery management system (34), entire car controller (35) is connected with brake monitor (36) by CAN bus.
It is based on above-mentioned recycled based on the two-wheeled acoustic filed electric vehicle brake power of stacked unidirectional valve and check valve System, entire car controller (35) are based on speed, the brake pedal displacement sensor that brake monitor (36) are exported by CAN bus (50) the battery permission maximum charging current that pedal displacement signal, the battery management system (34) exported is exported by CAN bus, The right driving wheel driving motor and transmission device (15) institute that right driving wheel drive motor controller (16) is exported by CAN bus The right driving wheel maximum motor brake force that can be provided, the left side that left driving wheel drive motor controller (27) is exported by CAN bus The left driving wheel maximum motor brake force that drive wheel motor and transmission device (28) can be provided judges whether triggering braking Energy recovery function, and control switch solenoid valve (5) accordingly.
When brake pedal and triggering braking energy recovering function, entire car controller (35) control switch solenoid valve (5) it is connected, the port b of secondary air accumulator (3) is connected with the gas circuit between the port a of the first triple valve (7)；Work as brake pedal But when not triggering braking energy recovering function, entire car controller (35) control switch solenoid valve (5) shutdown, secondary air accumulator (3) Gas circuit between port b and the port a of the first triple valve (7) is not turned on；When driver loosens the brake (1), vehicle control Device (35) control switch solenoid valve (5) processed disconnects the gas circuit between pair air accumulator (3) port b and the first triple valve (7) port a and connects It connects.
Compared with prior art, the present invention by increasing secondary air accumulator (3), switch in existing brake energy recovering system Solenoid valve (5), the first triple valve (7), drive shaft relay valve (8), the second triple valve (9), right driving wheel stacked unidirectional valve (10), third triple valve (11), right driving wheel brake-pressure sensor (17), right driving wheel check valve (20), the 4th triple valve (21), the 5th triple valve (22), left driving wheel check valve (23), left driving wheel brake-pressure sensor (26), the 6th triple valve (32), left driving wheel stacked unidirectional valve (33), right non-driving wheel brake-pressure sensor (46) and brake pedal displacement sensing The components such as device (50), making each driving wheel brake circuit tool, there are two independent high-pressure air source and double back line structures, trigger Brake Energy When amount recycling, high pressure gas can be provided for driving wheel brake chamber by the higher gas source of air pressure, to efficiently 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.
Fig. 1 is that the present invention is based on the recycling of the two-wheeled acoustic filed 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, switch electromagnetic valve；6, Air compressor；7, the first triple valve；8, drive shaft relay valve；9, the second triple valve；10, right driving wheel stacked unidirectional valve； 11, third triple valve；12, right driving wheel brake；13, right driving wheel；14, right driving wheel wheel speed sensors；15, right driving wheel Driving motor and transmission device；16, right driving wheel drive motor controller；17, right driving wheel brake-pressure sensor；18, right Driving wheel brake chamber；19, right driving wheel ABS solenoid valve；20, right driving wheel check valve；21, the 4th triple valve；22, the 5th 3 Port valve；23, left driving wheel check valve；24, left driving wheel ABS solenoid valve；25, left driving wheel brake chamber；26, left driving wheel Brake-pressure sensor；27, left driving wheel drive motor controller；28, left driving wheel driving motor and transmission device；29, left Driving wheel wheel speed sensors；30, left driving wheel brake；31, left driving wheel；32, the 6th triple valve；33, left driving wheel is superimposed Formula check valve；34, battery management system；35, entire car controller；36, brake monitor；37, nonpowered axle relay valve；38, Seven triple valves；39, left non-driving wheel；40, left non-driving wheel brake；41, left non-driving wheel wheel speed sensors；42, left non-drive Driver brake gas chamber；43, left non-driving wheel ABS solenoid valve；44, right non-driving wheel ABS solenoid valve；45, right non-driving wheel braking Gas chamber；46, right non-driving wheel brake-pressure sensor；47, right non-driving wheel wheel speed sensors；48, right non-driving wheel brake； 49, right non-driving wheel；50, brake pedal displacement sensor.
A specific embodiment of the invention is described below.
The present invention provides a kind of two-wheeled acoustic filed 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 two-wheeled acoustic filed 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), switch electromagnetic valve (5), air compressor (6), the first triple valve (7), drive shaft relay valve (8), the second triple valve (9), right driving wheel stacked unidirectional valve (10), Three triple valves (11), right driving wheel wheel speed sensors (14), right driving wheel driving motor and transmission device (15), right driving wheel are driven Dynamic electric machine controller (16), right driving wheel brake-pressure sensor (17), right driving wheel brake chamber (18), right driving wheel ABS Solenoid valve (19), right driving wheel check valve (20), the 4th triple valve (21), the 5th triple valve (22), left driving wheel check valve (23), left driving wheel ABS solenoid valve (24), left driving wheel brake chamber (25), left driving wheel brake-pressure sensor (26), a left side Drive wheel electric machine controller (27), left driving wheel driving motor and transmission device (28), left driving wheel wheel speed sensors (29), the 6th triple valve (32), left driving wheel stacked unidirectional valve (33), battery management system (34), entire car controller (35), Brake monitor (36), nonpowered axle relay valve (37), the 7th triple valve (38), left non-driving wheel wheel speed sensors (41), a left side Non-driving wheel brake chamber (42), left non-driving wheel ABS solenoid valve (43), right non-driving wheel ABS solenoid valve (44), the right side are non-driven Wheel brake chamber (45), right non-driving wheel brake-pressure sensor (46), right non-driving wheel wheel speed sensors (47), braking are stepped on Plate displacement sensor (50) composition.
The air outlet b and main air accumulator (4) air inlet port a of air compressor (6) pass through air circuit connection, air compressor (6) the air inlet port a of air outlet a and secondary air accumulator (3) pass through air circuit connection.
The air inlet port a of brake valve (2) is connected with the air outlet d of main air accumulator (4) by gas circuit, brake valve (2) Air inlet port b is connected with the air outlet c of main air accumulator (4) by gas circuit, the air outlet c and nonpowered axle of brake valve (2) The control port c of relay valve (37) is connected by gas circuit, the air outlet d of brake valve (2) and the control of drive shaft relay valve (8) Port c is connected by gas circuit.
The air outlet b of secondary air accumulator (3) is connected by gas circuit with the air inlet port a of switch electromagnetic valve (5), and electromagnetism is switched The air outlet b of valve (5) is connected with the air inlet port a of the first triple valve (7) by gas circuit, the outlet side of the first triple valve (7) Mouth b is connected by gas circuit with the air inlet port b of right driving wheel stacked unidirectional valve (10), the air outlet of the first triple valve (7) C is connected by gas circuit with the air inlet port b of left driving wheel stacked unidirectional valve (33).
The port a of drive shaft relay valve (8) is connected with the air outlet e of main air accumulator (4) by gas circuit, drive shaft servo The port b of valve (8) is connected by gas circuit with the port b of the second triple valve (9).
The port a of second triple valve (9) is connected by gas circuit with the port c of the 4th triple valve (21), the 4th triple valve (21) port a is connected by gas circuit with the air inlet port a of right driving wheel stacked unidirectional valve (10), the 4th triple valve (21) Port b be connected with the air outlet b of right driving wheel check valve (20) by gas circuit, right driving wheel stacked unidirectional valve (10) Air outlet c is connected with the port a of third triple valve (11) by gas circuit, the air inlet port a of right driving wheel check valve (20) with The port c of third triple valve (11) is connected by gas circuit, port b and right driving wheel the ABS solenoid valve of third triple valve (11) (19) air inlet port a is connected by gas circuit, and the air inlet port b and right driving wheel of right driving wheel ABS solenoid valve (19) brake gas Room (18) is connected by gas circuit.
Right driving wheel brake-pressure sensor (17) are installed on right driving wheel brake chamber (18).
The port c of second triple valve (9) is connected by gas circuit with the port c of the 5th triple valve (22), the 5th triple valve (22) port a is connected by gas circuit with the air inlet port a of left driving wheel stacked unidirectional valve (33), the 5th triple valve (22) Port b is connected by gas circuit with the air outlet b of left driving wheel check valve (23), and left driving wheel stacked unidirectional valve (33) goes out Gas port c is connected with the port a of the 6th triple valve (32) by gas circuit, the air inlet port a of left driving wheel check valve (23) and The port c of six triple valves (32) is connected by gas circuit, port b and left driving wheel the ABS solenoid valve (24) of the 6th triple valve (32) Air inlet port a be connected by gas circuit, the air inlet port b of left driving wheel ABS solenoid valve (24) and left driving wheel brake chamber (25) it is connected by gas circuit.
Left driving wheel brake-pressure sensor (26) are installed on left driving wheel brake chamber (25).
The port a of nonpowered axle relay valve (37) is connected with the air outlet b of main air accumulator (4) by gas circuit, non-driven The port b of axis relay valve (37) is connected by gas circuit with the port b of the 7th triple valve (38), the port c of the 7th triple valve (38) Be connected by gas circuit with the air inlet port a of left non-driving wheel ABS solenoid valve (43), left non-driving wheel ABS solenoid valve (43) into Gas port b is connected with left non-driving wheel brake chamber (42) by gas circuit, and the port a of the 7th triple valve (38) passes through gas circuit and the right side The air inlet port a of non-driving wheel ABS solenoid valve (44) is connected, and the air inlet port b of right non-driving wheel ABS solenoid valve (44) and the right side are non- Driving wheel brake chamber (45) is connected by gas circuit.
Right non-driving wheel brake-pressure sensor (46) is installed on right non-driving wheel brake chamber (45).
Right driving wheel wheel speed sensors (14), left driving wheel wheel speed sensors (29), left non-driving wheel wheel speed sensors (41), right non-driving wheel wheel speed sensors (47) are connected by signal wire with brake monitor (36).
Right driving wheel ABS solenoid valve (19), left driving wheel ABS solenoid valve (24), left non-driving wheel ABS solenoid valve (43), Right non-driving wheel ABS solenoid valve (44) is connected by signal wire with brake monitor (36).
Switch electromagnetic valve (5), right driving wheel brake-pressure sensor (17), left driving wheel brake-pressure sensor (26), Right non-driving wheel brake-pressure sensor (46) and brake pedal displacement sensor (50) pass through signal wire and entire car controller (35) it is connected.
Right driving wheel drive motor controller (16), left driving wheel drive motor controller (27), battery management system (34), entire car controller (35) is connected with brake monitor (36) by CAN bus.
When braking, the working principle of above-mentioned braking system is as follows.
In car running process, brake monitor (36) receives right driving wheel wheel speed sensors (14), left driving wheel wheel speed The wheel speed signal that sensor (29), left non-driving wheel wheel speed sensors (41), right non-driving wheel wheel speed sensors (47) export.
Entire car controller (35) receives the speed signal exported by brake monitor (36) and vehicle acceleration signal, by making The pedal displacement signal of dynamic pedal displacement sensor (50) output, by the non-of right non-driving wheel brake-pressure sensor (46) output Drive shaft braking pressure pressure value, the right driving wheel braking pressure pressure value of right driving wheel brake-pressure sensor (17) output, The left driving wheel braking pressure pressure value of left driving wheel brake-pressure sensor (26) output, battery management system (34) pass through The battery of CAN bus output allows maximum charging current, and right driving wheel drive motor controller (16) is exported by CAN bus Right driving wheel driving motor and the right driving wheel maximum motor brake force that can be provided of transmission device (15), left driving wheel driving The left driving that the left driving wheel driving motor and transmission device (28) that electric machine controller (27) is exported by CAN bus can be provided Take turns maximum motor brake force.
Right driving wheel driving motor and transmission device (15) can be applied to right driving wheel (13) maximum motor brake force and Left driving wheel driving motor and transmission device (28) can be applied to the maximum motor brake force of left driving wheel (31) by full-vehicle control The battery that device (35) is exported according to vehicle speed, vehicle acceleration, battery management system (34) by CAN bus allows maximum to fill Electric current, the right driving wheel driving motor and transmission device that right driving wheel drive motor controller (16) is exported by CAN bus (15) the right driving wheel maximum motor brake force that can be provided, left driving wheel drive motor controller (27) are defeated by CAN bus The left driving wheel maximum motor brake force that left driving wheel driving motor and transmission device (28) out can be provided determines.
Entire car controller (35) is based on speed, the brake pedal displacement biography that brake monitor (36) are exported by CAN bus The battery permission maximum charge that pedal displacement signal, the battery management system (34) of sensor (50) output are exported by CAN bus Electric current, the right driving wheel driving motor and transmission device that right driving wheel drive motor controller (16) is exported by CAN bus (15) the right driving wheel maximum motor brake force that can be provided, left driving wheel drive motor controller (27) are defeated by CAN bus The left driving wheel maximum motor brake force that left driving wheel driving motor and transmission device (28) out can be provided, and according to as follows Four conditions judge whether to trigger braking energy recovering function: condition one: the vehicle speed value of brake monitor (36) output, which is greater than, to be permitted Perhaps the minimum speed threshold value of Brake energy recovery；Condition two: the pedal displacement signal of brake pedal displacement sensor (50) output Greater than the pedal displacement threshold value of triggering Brake energy recovery；Condition three: the battery of battery management system (34) output allows maximum Charging current is greater than 0；Condition four: the left driving wheel demand motor braking power or right driving wheel determined by entire car controller (35) needs Motor braking power is asked to be greater than the minimum motor braking force threshold for allowing Brake energy recovery.
When meeting aforementioned four condition simultaneously, braking energy recovering function is triggered；When there is any one not to be able to satisfy, Braking energy recovering function cannot then be triggered.
When brake pedal (1), and when triggering braking energy recovering function.
Entire car controller (35) is displaced according to speed, vehicle acceleration and brake pedal, determines left non-driving wheel (39), the right side Total brake force target value needed for non-driving wheel (49), left driving wheel (31) and right driving wheel (13).
Entire car controller (35) total brake force target value, battery according to needed for left driving wheel (31) and right driving wheel (13) Management system (34) allows maximum charging current, right driving wheel drive motor controller (16) by the battery that CAN bus exports The right driving wheel maximum motor braking that the right driving wheel driving motor and transmission device (15) exported by CAN bus can be provided Power, the left driving wheel driving motor and transmission device (28) that left driving wheel drive motor controller (27) is exported by CAN bus The left driving wheel maximum motor brake force that can be provided, motor system needed for determining right driving wheel (13) and left driving wheel (31) Power target value.
Entire car controller (35) is according to the total brake force target value of left driving wheel (31) and the total brake force mesh of right driving wheel (13) Motor braking power target value needed for scale value, left driving wheel (31) and right driving wheel (13) determines left driving wheel (31) and right driving Take turns the air-pressure brake power target value of (13).
Entire car controller (35) is exported required right driving wheel (13) motor braking power target value to the right side by CAN bus Drive wheel electric machine controller (16), entire car controller (35) pass through CAN bus for required left driving wheel (31) motor system Power target value, which exports, gives left driving wheel drive motor controller (27), and entire car controller (35) exports left drive by CAN bus The air-pressure brake power target value of driving wheel (31), the air-pressure brake power target value of right driving wheel (13), right driving wheel brake pressure pass The left drive that the right driving wheel air-pressure brake power actual value of sensor (17) output, left driving wheel brake-pressure sensor (26) export Driving wheel air-pressure brake power actual value gives brake monitor (36).
When triggering braking energy recovering function, the principle for applying braking to left driving wheel (31) is as follows.
Entire car controller (35) control switch solenoid valve (5) is connected, and the high pressure gas in secondary air accumulator (3) successively passes through pair Port a and port the c arrival of the port b of air accumulator (3), the port a and port b of switch electromagnetic valve (5), the first triple valve (7) The port b of left driving wheel stacked unidirectional valve (33).
High pressure gas in main air accumulator (4) is by the port d of main air accumulator (4), the port a and port d of brake valve (2) Into the control port c of drive shaft relay valve (8), the port a and port b of drive shaft relay valve (8) is connected, main air accumulator (4) high pressure gas in successively passes through the port a and port b, second of the port e of main air accumulator (4), drive shaft relay valve (8) The port b and port c of triple valve (9), the port c and port a of the 5th triple valve (22) reach left driving wheel stacked unidirectional valve (33) port a.
At this point, according to left driving wheel stacked unidirectional valve (33) port a air pressure and left driving wheel stacked unidirectional valve (33) The size of port b air pressure is divided into the following two kinds to the case where left driving wheel brake chamber (25) offer brake pressure.
When left driving wheel stacked unidirectional valve (33) port a air pressure is greater than port b air pressure, by main air accumulator (4) to a left side Driving wheel brake chamber (25) provides high pressure gas；At this point, the high pressure gas in main air accumulator (4) successively passes through main air accumulator (4) port a and port b, the port b and port c of the second triple valve (9), the 5th threeway of port e, drive shaft relay valve (8) The port c and port a of valve (22), the port a and port c of left driving wheel stacked unidirectional valve (33), the 6th triple valve (32) Port a and port b, the port a of left driving wheel ABS solenoid valve (24) and port b enter left driving wheel brake chamber (25), thus Air-pressure brake power can be applied to left driving wheel (31) by left driving wheel brake (30).
When left driving wheel stacked unidirectional valve (33) port a air pressure is less than port b air pressure, by secondary air accumulator (3) to a left side Driving wheel brake chamber (25) provides high pressure gas；At this point, the high pressure gas in secondary air accumulator (3) successively passes through secondary air accumulator (3) the port a and port c, left driving wheel of the port a and port b of port b, switch electromagnetic valve (5), the first triple valve (7) The port b and port c of stacked unidirectional valve (33), the port a and port b of the 6th triple valve (32), left driving wheel ABS solenoid valve (24) port a and port b, into left driving wheel brake chamber (25), so as to give a left side by left driving wheel brake (30) Driving wheel (31) applies air-pressure brake power.
For the decoupling control for realizing left driving wheel (31) motor braking power and air-pressure brake power, left driving wheel ABS can be passed through Solenoid valve (24) adjusts the size of left driving wheel (31) air-pressure brake power, according to left driving wheel driving motor and transmission device (28) it can be applied between the maximum motor brake force of left driving wheel (31) and total brake force target value of left driving wheel (31) Relationship, the mode for applying brake force to left driving wheel (31) are divided into the following two kinds.
Mode one: when left driving wheel driving motor and transmission device (28) can be applied to the maximum motor of left driving wheel (31) When brake force is greater than or equal to left driving wheel (31) total brake force target value, the air-pressure brake power target value of left driving wheel (31) is 0, at this point, brake monitor (36) is closed by signal line traffic control left driving wheel ABS solenoid valve (24) port a, port b and port C is opened, and disconnects the air circuit connection between left driving wheel brake chamber (25) and the 6th triple valve (32), left driving wheel brake chamber (25) it is communicated by the port b and port c of left driving wheel ABS solenoid valve (24) with atmosphere, at this time by left driving wheel driving motor And transmission device (28) applies required brake force to left driving wheel (31).
Mode two: when left driving wheel driving motor and transmission device (28) can be applied to the maximum motor of left driving wheel (31) When brake force is less than left driving wheel (31) total brake force target value, left driving wheel driving motor and transmission device (28) give left driving It takes turns (31) and applies maximum motor brake force.
Left driving wheel (31) air-pressure brake power target value is driven by the total brake force target value of left driving wheel (31) and left driving wheel The difference that dynamic motor and transmission device (28) can be applied to the maximum motor brake force of left driving wheel (31) determines, according to left driving wheel (31) relationship between air-pressure brake power target value and air-pressure brake power actual value applies air-pressure brake power to left driving wheel (31) The case where be divided into following three kinds.
When left driving wheel (31) air-pressure brake power target value is greater than air-pressure brake power actual value, brake monitor (36) It is connected by signal line traffic control left driving wheel ABS solenoid valve (24) port a and port b, port c is closed, the 6th triple valve (32) High pressure gas at the b of port enters left driving wheel brake chamber by left driving wheel ABS solenoid valve (24) port a and port b (25), to realize the increase of left driving wheel (31) actual pressure brake force.
When left driving wheel (31) air-pressure brake power target value is less than air-pressure brake power actual value, brake monitor (36) It is closed by signal line traffic control left driving wheel ABS solenoid valve (24) port a, port b and port c conducting, left driving wheel brake gas High pressure gas at room (25) is discharged into atmosphere by left driving wheel ABS solenoid valve (24) port b and port c, to realize left driving Take turns the reduction of (31) actual pressure brake force.
When left driving wheel (31) air-pressure brake power target value is equal to air-pressure brake power actual value, brake monitor (36) It is closed by signal line traffic control left driving wheel ABS solenoid valve (24) port b and port c, in left driving wheel brake chamber (25) Air pressure remains unchanged, to realize the holding of left driving wheel (31) actual pressure brake force.
When brake pedal (1), but when not triggering braking energy recovering function.
Switch electromagnetic valve (5) is closed, and the gas circuit between secondary air accumulator (3) port b and the port a of the first triple valve (7) is disconnected It opens, without high pressure gas at the port b of left driving wheel stacked unidirectional valve (33).
High pressure gas in main air accumulator (4) is by the port d of main air accumulator (4), the port a and port d of brake valve (2) Into the control port c of drive shaft relay valve (8), the port a and port b of drive shaft relay valve (8) is connected, main air accumulator (4) high pressure gas in successively passes through the port a and port b, second of the port e of main air accumulator (4), drive shaft relay valve (8) The port b and port c of triple valve (9), the port c and port a of the 5th triple valve (22) reach left driving wheel stacked unidirectional valve (33) port a.
The port b of left driving wheel stacked unidirectional valve (33) is closed, port a and port c conducting, in main air accumulator (4) High pressure gas successively passes through the port e of main air accumulator (4), the port a of drive shaft relay valve (8) and port b, the second triple valve (9) port of the port c and port a of port b and port c, the 5th triple valve (22), left driving wheel stacked unidirectional valve (33) A and port c, the port a and port b of the 6th triple valve (32), left driving wheel ABS solenoid valve (24) port a and port b into Enter left driving wheel brake chamber (25), to apply air-pressure brake to left driving wheel (31) by left driving wheel brake (30) Power.
Releasing to the gentle compacting power of releasing that the releasing of left driving wheel (31) braking is divided into motor braking power, work are former It manages as follows.
When driver loosens the brake (1), entire car controller (35) passes through left driving wheel drive motor controller (27) it controls and is reduced by left driving wheel driving motor and transmission device (28) to the motor braking power that left driving wheel (31) apply, with Release the motor braking power of left driving wheel.
When driver loosens the brake (1), brake valve (2) is closed, and drive shaft relay valve (8) disconnects main air accumulator (4) air circuit connection between port e and the second triple valve (9) port b, switch electromagnetic valve (5) disconnect pair air accumulator (3) port b With the air circuit connection between the first triple valve (7) port a, high pressure gas in left driving wheel brake chamber (25) is passed sequentially through Port b and port c, the left driving wheel list of the port b and port a of left driving wheel ABS solenoid valve (24), the 6th triple valve (32) To the port a and port b of valve (23), the port b and port c of the 5th triple valve (22), the port c of the second triple valve (9) and end Mouth b enters drive shaft relay valve (8), atmosphere is discharged into through drive shaft relay valve (8), to release the air pressure system of left driving wheel (31) Power does not apply left driving wheel ABS solenoid valve (24) control in the process.
When triggering braking energy recovering function, the principle for applying braking to right driving wheel (13) is as follows.
Entire car controller (35) control switch solenoid valve (5) is connected, and the high pressure gas in secondary air accumulator (3) successively passes through pair Port a and port the b arrival of the port b of air accumulator (3), the port a and port b of switch electromagnetic valve (5), the first triple valve (7) The port b of right driving wheel stacked unidirectional valve (10).
High pressure gas in main air accumulator (4) is by the port d of main air accumulator (4), the port a and port d of brake valve (2) Into the control port c of drive shaft relay valve (8), the port a and port b of drive shaft relay valve (8) is connected, main air accumulator (4) high pressure gas in successively passes through the port a and port b, second of the port e of main air accumulator (4), drive shaft relay valve (8) The port b and port a of triple valve (9), the port c and port a of the 4th triple valve (21) reach right driving wheel stacked unidirectional valve (10) port a.
At this point, according to right driving wheel stacked unidirectional valve (10) port a air pressure and right driving wheel stacked unidirectional valve (10) The size of port b air pressure is divided into the following two kinds to the case where right driving wheel brake chamber (18) offer brake pressure.
When right driving wheel stacked unidirectional valve (10) port a air pressure is greater than port b air pressure, by main air accumulator (4) to the right side Driving wheel brake chamber (18) provides high pressure gas；At this point, the high pressure gas in main air accumulator (4) successively passes through main air accumulator (4) port a and port b, the port b and port a of the second triple valve (9), the 4th threeway of port e, drive shaft relay valve (8) The port c and port a of valve (21), the port a and port c of right driving wheel stacked unidirectional valve (10), third triple valve (11) Port a and port b, the port a of right driving wheel ABS solenoid valve (19) and port b enter right driving wheel brake chamber (18), thus Air-pressure brake power can be applied to right driving wheel (13) by right driving wheel brake (12).
When right driving wheel stacked unidirectional valve (10) port a air pressure is less than port b air pressure, by secondary air accumulator (3) to the right side Driving wheel brake chamber (18) provides high pressure gas；At this point, the high pressure gas in secondary air accumulator (3) successively passes through secondary air accumulator (3) the port a and port b, right driving wheel of the port a and port b of port b, switch electromagnetic valve (5), the first triple valve (7) The port b and port c of stacked unidirectional valve (10), the port a and port b of third triple valve (11), right driving wheel ABS solenoid valve (19) port a and port b, into right driving wheel brake chamber (18), so as to give the right side by right driving wheel brake (12) Driving wheel (13) applies air-pressure brake power.
For the decoupling control for realizing right driving wheel (13) motor braking power and air-pressure brake power, right driving wheel ABS can be passed through Solenoid valve (19) adjusts the size of right driving wheel (13) air-pressure brake power, according to right driving wheel driving motor and transmission device (15) it can be applied between the maximum motor brake force of right driving wheel (13) and total brake force target value of right driving wheel (13) Relationship, the mode for applying brake force to right driving wheel (13) are divided into following two kinds.
Mode one: when right driving wheel driving motor and transmission device (15) can be applied to the maximum motor of right driving wheel (13) When brake force is greater than right driving wheel (13) total brake force target value, the air-pressure brake power target value of right driving wheel (13) is 0, this When, brake monitor (36) is closed by signal line traffic control right driving wheel ABS solenoid valve (19) port a, and port b and port c are beaten It opens, disconnects the air circuit connection between right driving wheel brake chamber (18) and third triple valve (11), right driving wheel brake chamber (18) it is communicated by the port b and port c of right driving wheel ABS solenoid valve (19) with atmosphere, at this time by right driving wheel driving motor And transmission device (15) applies required brake force to right driving wheel (13).
Mode two: when right driving wheel driving motor and transmission device (15) can be applied to the maximum motor of right driving wheel (13) When brake force is less than right driving wheel (13) total brake force target value, right driving wheel driving motor and transmission device (15) give right driving It takes turns (13) and applies maximum motor brake force.
Right driving wheel (13) air-pressure brake power target value is driven by the total brake force target value of right driving wheel (13) and right driving wheel The difference that dynamic motor and transmission device (15) can be applied to the maximum motor brake force of left driving wheel (13) determines, according to right driving wheel (13) relationship between air-pressure brake power target value and air-pressure brake power actual value applies air-pressure brake power to right driving wheel (13) The case where be divided into following three kinds.
When right driving wheel (13) air-pressure brake power target value is greater than air-pressure brake power actual value, brake monitor (36) It is connected by signal line traffic control right driving wheel ABS solenoid valve (19) port a and port b, port c is closed, third triple valve (11) High pressure gas at the b of port enters right driving wheel brake chamber by right driving wheel ABS solenoid valve (19) port a and port b (18), to realize the increase of right driving wheel (13) actual pressure brake force.
When right driving wheel (13) air-pressure brake power target value is less than air-pressure brake power actual value, brake monitor (36) It is closed by signal line traffic control right driving wheel ABS solenoid valve (19) port a, port b and port c conducting, right driving wheel brake gas High pressure gas at room (18) is discharged into atmosphere by right driving wheel ABS solenoid valve (19) port b and port c, to realize right driving Take turns the reduction of (13) actual pressure brake force.
When right driving wheel (13) air-pressure brake power target value is equal to air-pressure brake power actual value, brake monitor (36) It is closed by signal line traffic control right driving wheel ABS solenoid valve (19) port b and port c, in right driving wheel brake chamber (18) Air pressure remains unchanged, to realize the holding of right driving wheel (13) actual pressure brake force.
When brake pedal (1), but when not triggering braking energy recovering function.
Switch electromagnetic valve (5) is closed, and the gas circuit between secondary air accumulator (3) port b and the port a of the first triple valve (7) is disconnected It opens, without high pressure gas at the port b of right driving wheel stacked unidirectional valve (10).
High pressure gas in main air accumulator (4) is by the port d of main air accumulator (4), the port a and port d of brake valve (2) Into the control port c of drive shaft relay valve (8), the port a and port b of drive shaft relay valve (8) is connected, main air accumulator (4) high pressure gas in successively pass through the port a and port b of drive shaft relay valve (8), the second triple valve (9) port b and The port a of port c and port a arrival right driving wheel stacked unidirectional valve (10) of port a, the 4th triple valve (21).
The port b of right driving wheel stacked unidirectional valve (10) is closed, port a and port c conducting, in main air accumulator (4) High pressure gas successively passes through the port e of main air accumulator (4), the port a of drive shaft relay valve (8) and port b, the second triple valve (9) port of the port c and port a of port b and port a, the 4th triple valve (21), right driving wheel stacked unidirectional valve (10) A and port c, the port a of third triple valve (11) and port b, the port a of right driving wheel ABS solenoid valve (19) and port b into Enter right driving wheel brake chamber (18), to apply air-pressure brake to right driving wheel (13) by right driving wheel brake (12) Power.
Releasing to the gentle compacting power of releasing that the releasing of right driving wheel (13) braking is divided into motor braking power, work are former It manages as follows.
When driver loosens the brake (1), entire car controller (35) passes through right driving wheel drive motor controller (16) control applies motor braking power to right driving wheel (13) by right driving wheel driving motor and transmission device (15) and reduces, with solution Except the motor braking power of right driving wheel.
When driver loosens the brake (1), brake valve (2) is closed, and drive shaft relay valve (8) disconnects main air accumulator (4) air circuit connection between port e and the second triple valve (9) port b, switch electromagnetic valve (5) disconnect pair air accumulator (3) port b With the air circuit connection between the first triple valve (7) port a, high pressure gas in right driving wheel brake chamber (18) is passed sequentially through Port b and port c, the right driving wheel list of the port b and port a of right driving wheel ABS solenoid valve (19), third triple valve (11) To the port a and port b of valve (20), the port b and port c of the 4th triple valve (21), the port a of the second triple valve (9) and end Mouth b enters drive shaft relay valve (8), atmosphere is discharged into through drive shaft relay valve (8), to release the air pressure system of right driving wheel (13) Power does not apply right driving wheel ABS solenoid valve (19) control in the process.
Working principle when left non-driving wheel (39) are applied with air-pressure brake is as follows: when driver's brake pedal (1) When, brake valve (2) is opened, and the high pressure gas in main air accumulator (4) is by the port c of main air accumulator (4), the end of brake valve (2) Mouth b and port c enters the control port c of nonpowered axle relay valve (37), makes port a and the end of nonpowered axle relay valve (37) Mouth b conducting；High pressure gas in main air accumulator (4) successively passes through the port b of main air accumulator (4), nonpowered axle relay valve (37) Port a and port b, the port b and port c of the 7th triple valve (38), left non-driving wheel ABS solenoid valve (43) port a and Port b enters left non-driving wheel brake chamber (42), is applied by left non-driving wheel brake (40) to left non-driving wheel (39) Air-pressure brake power.
Target value and left non-driving wheel gas based on the left non-driving wheel air-pressure brake power determined by entire car controller (35) The relationship between power actual value is suppressed, following three kinds of situations are divided into the control of left non-driving wheel (39) air-pressure brake power.
When left non-driving wheel (39) air-pressure brake power target value is greater than left non-driving wheel air-pressure brake power actual value, braking Controller (36) is connected by signal line traffic control left non-driving wheel ABS solenoid valve (43) port a and port b, and port c is closed, the High pressure gas at seven triple valves (38) port c enters left non-by left non-driving wheel ABS solenoid valve (43) port a and port b Driving wheel brake chamber (42), to realize the increase of left non-driving wheel (39) actual pressure brake force.
When left non-driving wheel (39) air-pressure brake power target value is less than left non-driving wheel air-pressure brake power actual value, braking Controller (36) is closed by left non-driving wheel ABS solenoid valve (43) the port a of signal line traffic control, port b and port c conducting, left High pressure gas at non-driving wheel brake chamber (42) is discharged by left non-driving wheel ABS solenoid valve (43) port b and port c Atmosphere, to realize the reduction of left non-driving wheel (39) actual pressure brake force.
When left non-driving wheel (39) air-pressure brake power target value is equal to left non-driving wheel air-pressure brake power actual value, braking Controller (36) is closed by signal line traffic control left non-driving wheel ABS solenoid valve (43) port b and port c, left non-driving wheel system The air pressure taken offence in room (42) remains unchanged, to realize the holding of left non-driving wheel (39) actual pressure brake force.
The working principle for releasing air-pressure brake to left non-driving wheel (39) is as follows: when driver loosens the brake (1), Brake valve (2) is closed, and nonpowered axle relay valve (37) disconnects between main air accumulator (4) port b and the 7th triple valve (38) port b Air circuit connection, the high pressure gas in left non-driving wheel brake chamber (42) passes sequentially through left non-driving wheel ABS solenoid valve (43) Port b and the port c and port b of port a, the 7th triple valve (38) enter nonpowered axle relay valve (37), through nonpowered axle Relay valve (37) is discharged into atmosphere, so that the air-pressure brake power of left non-driving wheel (39) is released, in the process not to left non-driven It takes turns ABS solenoid valve (43) and applies control.
Working principle when right non-driving wheel (49) are applied with air-pressure brake is as follows: when driver's brake pedal (1) When, brake valve (2) is opened, and the high pressure gas in main air accumulator (4) is by the port c of main air accumulator (4), the end of brake valve (2) Mouth b and port c enters the control port c of nonpowered axle relay valve (37), makes port a and the end of nonpowered axle relay valve (37) Mouth b conducting；High pressure gas in main air accumulator (4) successively passes through the port b of main air accumulator (4), nonpowered axle relay valve (37) Port a and port b, the port b and port a of the 7th triple valve (38), right non-driving wheel ABS solenoid valve (44) port a and Port b enters right non-driving wheel brake chamber (45), is applied by right non-driving wheel brake (47) to right non-driving wheel (49) Air-pressure brake power.
Target value and right non-driving wheel gas based on the right non-driving wheel air-pressure brake power determined by entire car controller (35) The relationship between power actual value is suppressed, following three kinds of situations are divided into the control of right non-driving wheel (49) air-pressure brake power.
When right non-driving wheel (49) air-pressure brake power target value is greater than right non-driving wheel air-pressure brake power actual value, braking Controller (36) is connected by signal line traffic control right non-driving wheel ABS solenoid valve (44) port a and port b, and port c is closed, the High pressure gas at seven triple valves (38) port a enters right non-by right non-driving wheel ABS solenoid valve (44) port a and port b Driving wheel brake chamber (45), to realize the increase of right non-driving wheel (49) actual pressure brake force.
When right non-driving wheel (49) air-pressure brake power target value is less than right non-driving wheel air-pressure brake power actual value, braking Controller (36) is closed by right non-driving wheel ABS solenoid valve (44) the port a of signal line traffic control, port b and port c conducting, right High pressure gas at non-driving wheel brake chamber (45) is discharged by right non-driving wheel ABS solenoid valve (44) port b and port c Atmosphere, to realize the reduction of right non-driving wheel (49) actual pressure brake force.
When right non-driving wheel (49) air-pressure brake power target value is equal to right non-driving wheel air-pressure brake power actual value, braking Controller (36) is closed by signal line traffic control right non-driving wheel ABS solenoid valve (44) port b and port c, right non-driving wheel system The air pressure taken offence in room (45) remains unchanged, to realize the holding of right non-driving wheel (49) actual pressure brake force.
The working principle for releasing air-pressure brake to right non-driving wheel (49) is as follows: when driver loosens the brake (1), Brake valve (2) is closed, and nonpowered axle relay valve (37) disconnects between main air accumulator (4) port b and the 7th triple valve (38) port b Air circuit connection, the high pressure gas in right non-driving wheel brake chamber (45) passes sequentially through right non-driving wheel ABS solenoid valve (44) Port b and the port a and port b of port a, the 7th triple valve (38) enter nonpowered axle relay valve (37), through nonpowered axle Relay valve (37) is discharged into atmosphere, to release the air-pressure brake power of right non-driving wheel (49).
To being switched in the two-wheeled acoustic filed brake energy recovering system of electric vehicle based on stacked unidirectional valve and check valve Solenoid valve (5), right driving wheel stacked unidirectional valve (10), left driving wheel stacked unidirectional valve (33), right driving wheel check valve (20), the work characteristics of left driving wheel check valve (23) is described below.
When the non-brake pedal of driver (1), switch electromagnetic valve (5) is in an off state, the first triple valve (7) Port a at without high pressure gas；When driver's brake pedal (1) but when not triggering braking energy recovering function, switch electricity Magnet valve (5) is in an off state, without high pressure gas at the port a of the first triple valve (7)；When driver's brake pedal (1) And when triggering braking energy recovering function, switch electromagnetic valve (5) is in the conductive state, has height at the port a of the first triple valve (7) It calms the anger body.
There are three ports for right driving wheel stacked unidirectional valve (10) 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 right driving wheel stacked unidirectional valve (10), from right driving wheel superposing type The air outlet c of check valve (10) flows out, so that controlling gas can only flow from the first triple valve (7) or drive shaft relay valve (8) To right driving wheel brake chamber (18), cannot reversely be connected；When the air pressure of air inlet port a is greater than the air pressure of air inlet port b, end Mouth a and port c conducting, port b shutdown；When the air pressure of air inlet port a is less than the air pressure of air inlet port b, port b and port c Conducting, port a shutdown.
There are three ports for left driving wheel stacked unidirectional valve (33) 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 driving wheel stacked unidirectional valve (33), from left driving wheel superposing type The air outlet c of check valve (33) flows out, so that controlling gas can only flow from the first triple valve (7) and drive shaft relay valve (8) To left driving wheel brake chamber (25), cannot reversely be connected；When the air pressure of air inlet port a is greater than the air pressure of air inlet port b, end Mouth a and port c conducting, port b shutdown；When the air pressure of air inlet port a is less than the air pressure of air inlet port b, port b and port c Conducting, port a shutdown.
There are two ports for right driving wheel check valve (20) tool: air inlet port a and air outlet b, gas can only be from inlet ends Mouth a flows to air outlet b, cannot reversely be connected, and can only flow to driving from right driving wheel brake chamber (18) for controlling gas Axis relay valve (8).
There are two ports for left driving wheel check valve (23) tool: air inlet port a and air outlet b, gas can only be from inlet ends Mouth a flows to air outlet b, cannot reversely be connected, and can only flow to driving from left driving wheel brake chamber (25) for controlling gas Axis relay valve (8).
By above-mentioned discussion it is found that by increasing secondary air accumulator (3), switch electromagnetic valve in existing brake energy recovering system (5), the first triple valve (7), drive shaft relay valve (8), the second triple valve (9), right driving wheel stacked unidirectional valve (10), Three triple valves (11), right driving wheel brake-pressure sensor (17), right driving wheel check valve (20), the 4th triple valve (21), Five triple valves (22), left driving wheel check valve (23), left driving wheel brake-pressure sensor (26), the 6th triple valve (32), a left side Driving wheel stacked unidirectional valve (33), right non-driving wheel brake-pressure sensor (46) and brake pedal displacement sensor (50) etc. Component, making each driving wheel brake circuit tool, there are two independent high-pressure air source and double back line structures, step on when driver steps on braking When plate (1) and no triggering braking energy recovering function, high pressure gas needed for left driving wheel (31) and right driving wheel (13) is by leading Air accumulator (4) provides；When driver's brake pedal (1) and triggering braking energy recovering function when, left driving wheel (31) and High pressure gas needed for right driving wheel (13) is provided by the big person of air pressure in main air accumulator (4) and secondary air accumulator (3), so as to have When effect solves continuously to brake present in existing scheme, because of the relatively low bring driving wheel coupling braking force response rate of bleed pressure Slowly, and the critical issue of demand brake force is lagged behind.

Claims (2)

1. a kind of two-wheeled acoustic filed 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), switch electromagnetic valve (5), air compressor (6), the first triple valve (7), drive shaft relay valve (8), the second triple valve (9), right driving wheel stacked unidirectional valve (10), third Triple valve (11), right driving wheel wheel speed sensors (14), right driving wheel driving motor and transmission device (15), right driving wheel driving Electric machine controller (16), right driving wheel brake-pressure sensor (17), right driving wheel brake chamber (18), right driving wheel ABS electricity Magnet valve (19), right driving wheel check valve (20), the 4th triple valve (21), the 5th triple valve (22), left driving wheel check valve (23), Left driving wheel ABS solenoid valve (24), left driving wheel brake chamber (25), left driving wheel brake-pressure sensor (26), left driving Wheel drive electric machine controller (27), left driving wheel driving motor and transmission device (28), left driving wheel wheel speed sensors (29), Six triple valves (32), left driving wheel stacked unidirectional valve (33), battery management system (34), entire car controller (35), braking control It is device (36) processed, nonpowered axle relay valve (37), the 7th triple valve (38), left non-driving wheel wheel speed sensors (41), left non-driven Take turns brake chamber (42), left non-driving wheel ABS solenoid valve (43), right non-driving wheel ABS solenoid valve (44), the braking of right non-driving wheel Gas chamber (45), right non-driving wheel brake-pressure sensor (46), right non-driving wheel wheel speed sensors (47), brake pedal displacement pass Sensor (50) composition；
The air outlet b and main air accumulator (4) air inlet port a of air compressor (6) pass through air circuit connection, air compressor (6) Air outlet a and the air inlet port a of secondary air accumulator (3) pass through air circuit connection；
The air inlet port a of brake valve (2) is connected with the air outlet d of main air accumulator (4) by gas circuit, the air inlet of brake valve (2) Port b is connected with the air outlet c of main air accumulator (4) by gas circuit, the air outlet c and nonpowered axle servo of brake valve (2) The control port c of valve (37) is connected by gas circuit, the air outlet d of brake valve (2) and the control port of drive shaft relay valve (8) C is connected by gas circuit；
The air outlet b of secondary air accumulator (3) is connected by gas circuit with the air inlet port a of switch electromagnetic valve (5), switch electromagnetic valve (5) air outlet b is connected with the air inlet port a of the first triple valve (7) by gas circuit, the air outlet b of the first triple valve (7) It is connected by gas circuit with the air inlet port b of right driving wheel stacked unidirectional valve (10), the air outlet c of the first triple valve (7) is logical Gas circuit is crossed to be connected with the air inlet port b of left driving wheel stacked unidirectional valve (33)；
The port a of drive shaft relay valve (8) is connected with the air outlet e of main air accumulator (4) by gas circuit, drive shaft relay valve (8) port b is connected by gas circuit with the port b of the second triple valve (9)；
The port a of second triple valve (9) is connected by gas circuit with the port c of the 4th triple valve (21), the 4th triple valve (21) Port a is connected by gas circuit with the air inlet port a of right driving wheel stacked unidirectional valve (10), the port b of the 4th triple valve (21) It is connected by gas circuit with the air outlet b of right driving wheel check valve (20), the outlet side of right driving wheel stacked unidirectional valve (10) Mouth c is connected with the port a of third triple valve (11) by gas circuit, the air inlet port a and the three or three of right driving wheel check valve (20) The port c of port valve (11) by gas circuit be connected, port b and right driving wheel the ABS solenoid valve (19) of third triple valve (11) into Gas port a is connected by gas circuit, and the air inlet port b of right driving wheel ABS solenoid valve (19) and right driving wheel brake chamber (18) are logical Gas circuit is crossed to be connected；
Right driving wheel brake-pressure sensor (17) are installed on right driving wheel brake chamber (18)；
The port c of second triple valve (9) is connected by gas circuit with the port c of the 5th triple valve (22), the 5th triple valve (22) Port a is connected by gas circuit with the air inlet port a of left driving wheel stacked unidirectional valve (33), the port b of the 5th triple valve (22) It is connected by gas circuit with the air outlet b of left driving wheel check valve (23), the outlet side of left driving wheel stacked unidirectional valve (33) Mouth c is connected with the port a of the 6th triple valve (32) by gas circuit, the air inlet port a and the six or three of left driving wheel check valve (23) The port c of port valve (32) by gas circuit be connected, port b and left driving wheel the ABS solenoid valve (24) of the 6th triple valve (32) into Gas port a is connected by gas circuit, and the air inlet port b of left driving wheel ABS solenoid valve (24) and left driving wheel brake chamber (25) are logical Gas circuit is crossed to be connected；
Left driving wheel brake-pressure sensor (26) are installed on left driving wheel brake chamber (25)；
The port a of nonpowered axle relay valve (37) is connected with the air outlet b of main air accumulator (4) by gas circuit, nonpowered axle after The port b of dynamic valve (37) is connected by gas circuit with the port b of the 7th triple valve (38), and the port c of the 7th triple valve (38) passes through Gas circuit is connected with the air inlet port a of left non-driving wheel ABS solenoid valve (43), the inlet end of left non-driving wheel ABS solenoid valve (43) Mouth b is connected with left non-driving wheel brake chamber (42) by gas circuit, and the port a of the 7th triple valve (38) passes through gas circuit and right non-drive The air inlet port a of driving wheel ABS solenoid valve (44) is connected, and the air inlet port b of right non-driving wheel ABS solenoid valve (44) and the right side are non-driven Brake chamber (45) are taken turns to be connected by gas circuit；
Right non-driving wheel brake-pressure sensor (46) is installed on right non-driving wheel brake chamber (45)；
Right driving wheel wheel speed sensors (14), left driving wheel wheel speed sensors (29), left non-driving wheel wheel speed sensors (41), the right side Non-driving wheel wheel speed sensors (47) are connected by signal wire with brake monitor (36)；
Right driving wheel ABS solenoid valve (19), left driving wheel ABS solenoid valve (24), left non-driving wheel ABS solenoid valve (43), the right side are non- Driving wheel ABS solenoid valve (44) is connected by signal wire with brake monitor (36)；
Switch electromagnetic valve (5), right driving wheel brake-pressure sensor (17), left driving wheel brake-pressure sensor (26), the right side are non- Driving wheel brake-pressure sensor (46) and brake pedal displacement sensor (50) pass through signal wire and entire car controller (35) phase Even；
It is right driving wheel drive motor controller (16), left driving wheel drive motor controller (27), battery management system (34), whole Vehicle controller (35) is connected with brake monitor (36) by CAN bus.
2. the two-wheeled acoustic filed electric vehicle brake power according to claim 1 based on stacked unidirectional valve and check valve Recovery system, entire car controller (35) are based on speed, the brake pedal displacement biography that brake monitor (36) are exported by CAN bus The battery permission maximum charge that pedal displacement signal, the battery management system (34) of sensor (50) output are exported by CAN bus Electric current, the right driving wheel driving motor and transmission device that right driving wheel drive motor controller (16) is exported by CAN bus (15) the right driving wheel maximum motor brake force that can be provided, left driving wheel drive motor controller (27) are defeated by CAN bus The left driving wheel maximum motor brake force that left driving wheel driving motor and transmission device (28) out can be provided, judges whether to touch Send out braking energy recovering function, and control switch solenoid valve (5) accordingly, it is characterised in that:
When brake pedal and triggering braking energy recovering function, entire car controller (35) control switch solenoid valve (5) is led Logical, the port b of secondary air accumulator (3) is connected with the gas circuit between the port a of the first triple valve (7)；When brake pedal but not When triggering braking energy recovering function, entire car controller (35) control switch solenoid valve (5) shutdown, the port b of secondary air accumulator (3) Gas circuit between the port a of the first triple valve (7) is not turned on；When driver loosens the brake (1), entire car controller (35) control switch solenoid valve (5) disconnects the air circuit connection between pair air accumulator (3) port b and the first triple valve (7) port a.
CN201910429114.0A 2019-05-22 2019-05-22 Two-wheeled distributed driving electric vehicle braking energy recovery system based on stacked one-way valve and one-way valve Active CN110103921B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910429114.0A CN110103921B (en) 2019-05-22 2019-05-22 Two-wheeled distributed driving electric vehicle braking energy recovery system based on stacked one-way valve and one-way valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910429114.0A CN110103921B (en) 2019-05-22 2019-05-22 Two-wheeled distributed driving electric vehicle braking energy recovery system based on stacked one-way valve and one-way valve

Publications (2)

Publication Number Publication Date
CN110103921A true CN110103921A (en) 2019-08-09
CN110103921B CN110103921B (en) 2022-02-25

Family

ID=67491486

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201910429114.0A Active CN110103921B (en) 2019-05-22 2019-05-22 Two-wheeled distributed driving electric vehicle braking energy recovery system based on stacked one-way valve and one-way valve

Country Status (1)

Country Link
CN (1) CN110103921B (en)

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

Also Published As

Publication number Publication date
CN110103921B (en) 2022-02-25

Similar Documents

Publication Publication Date Title
CN104071139A (en) Compound regenerative braking system for electric automobile
CN110077382A (en) Two-wheeled centralized driving brake energy recovering system of electric vehicle based on double-way check valve and linear exhaust solenoid valve
CN110103921A (en) Two-wheeled acoustic filed brake energy recovering system of electric vehicle based on stacked unidirectional valve and check valve
CN108001240B (en) A kind of braking energy recovery system for electric vehicle
CN110103920A (en) Two-wheeled acoustic filed brake energy recovering system of electric vehicle based on stacked unidirectional valve and linear exhaust solenoid valve
CN110091849A (en) Two-wheeled acoustic filed brake energy recovering system of electric vehicle based on stacked unidirectional valve
CN110103916A (en) Two-wheeled acoustic filed brake energy recovering system of electric vehicle based on double-way check valve and linear exhaust solenoid valve
CN110077377A (en) Two-wheeled centralized driving brake energy recovering system of electric vehicle based on stacked unidirectional valve and check valve
CN207433303U (en) A kind of decoupling type brake energy recovering system
CN110091850A (en) Two-wheeled centralized driving brake energy recovering system of electric vehicle based on stacked unidirectional valve
CN110091851A (en) Four-wheel centralized driving brake energy recovering system of electric vehicle based on stacked unidirectional valve
CN110103924A (en) Four-wheel acoustic filed brake energy recovering system of electric vehicle based on stacked unidirectional valve and check valve
CN110077375A (en) Two-wheeled centralized driving brake energy recovering system of electric vehicle based on stacked unidirectional valve and linear exhaust solenoid valve
CN110103922A (en) Four-wheel centralized driving brake energy recovering system of electric vehicle based on stacked unidirectional valve and linear exhaust solenoid valve
CN110077378A (en) Four-wheel acoustic filed brake energy recovering system of electric vehicle based on double-way check valve and linear exhaust solenoid valve
CN110077380A (en) Four-wheel acoustic filed brake energy recovering system of electric vehicle based on stacked unidirectional valve
CN208897049U (en) It is a kind of can be with the bi-motor regeneration brake system of active brake
CN110077384A (en) Four-wheel centralized driving brake energy recovering system of electric vehicle based on double-way check valve and linear exhaust solenoid valve
CN110103925A (en) Four-wheel acoustic filed brake energy recovering system of electric vehicle based on stacked unidirectional valve and linear exhaust solenoid valve
CN110103918A (en) Four-wheel centralized driving brake energy recovering system of electric vehicle based on stacked unidirectional valve and check valve
CN110077379A (en) Four-wheel driven electric vehicle Brake energy recovery gas circuit based on stacked unidirectional valve and check valve
CN110103923A (en) Four-wheel driven electric vehicle decoupling type Brake energy recovery gas circuit based on stacked unidirectional valve
CN110077383A (en) Four-wheel driven electric vehicle Brake energy recovery gas circuit based on double-way check valve and linear exhaust solenoid valve
CN110091848A (en) Two based on stacked unidirectional valve and check valve, which drive electric vehicle brake power, recycles gas circuit
CN110103919A (en) Four-wheel driven electric vehicle Brake energy recovery gas circuit based on stacked unidirectional valve and linear exhaust solenoid valve

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant