CN204488784U - The novel WBS car brake of pure electric automobile - Google Patents
The novel WBS car brake of pure electric automobile Download PDFInfo
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- CN204488784U CN204488784U CN201520072367.4U CN201520072367U CN204488784U CN 204488784 U CN204488784 U CN 204488784U CN 201520072367 U CN201520072367 U CN 201520072367U CN 204488784 U CN204488784 U CN 204488784U
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- master cylinder
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Abstract
The utility model relates to the novel WBS car brake of a kind of pure electric automobile, comprise drg body, hydraulic regulating device, electronic control package, fluid reservoir, keysets, dust boot, brake pedal adaptor union, master cylinder cavity volume is provided with between the front surface of described drg body and lower surface, master cylinder cavity volume offers master cylinder hole, hole is fixedly connected with keysets to master cylinder, brake pedal adaptor union is connected with keysets, and keysets is provided with dust boot.The beneficial effects of the utility model are: when 1, not having vacuum servo unit on battery-driven car, realize the similar braking mode having vacuum servo unit, can install and use simultaneously, save the structure of vacuum servo unit complexity on fuel vehicle; 2, adopt pedal simulation mechanism, simultaneously system optimizing control, decrease pedal top feel and feel, improve driver comfort.
Description
Technical field
The utility model belongs to the auxiliary braking system technical field in pure electric automobile, particularly relates to the novel WBS car brake of a kind of pure electric automobile.
Background technology
Auxiliary braking system conventional at present has ABS, ESP etc., and as shown in Figure 7, it is conventional on fuel vehicle, can effectively prevent locking phenomenon in Motor Vehicle Braking Procedure, thus reduces the generation of vehicle wild effect.For fuel combustion vehicle popular at present, original system does not have any weak point.But along with electronlmobil becomes following developing direction (environmental protection), then this design Shortcomings part: do not have vacuum boost system in electronlmobil, relies on the brake mode of vacuum booster can lose value of service in electronlmobil so original.
Utility model content
The purpose of this utility model is the deficiency overcoming prior art existence, and provide a kind of pure electric automobile novel WBS car brake, by from boost mode and pedal simulation mechanism, realize the similar braking mode having vacuum servo structure, thus meet brake of electric vehicle requirement.
The purpose of this utility model has been come by following technical solution.The novel WBS car brake of this pure electric automobile, comprise drg body, hydraulic regulating device, electronic control package, fluid reservoir, keysets, dust boot, brake pedal adaptor union, master cylinder cavity volume is provided with between the front surface of described drg body and lower surface, master cylinder cavity volume offers master cylinder hole, hole is fixedly connected with keysets to master cylinder, brake pedal adaptor union is connected with keysets, and keysets is provided with dust boot; The rear surface of described drg body offers two fluid reservoir connecting bores side by side and four brake wheel cylinder connecting bores side by side, and fluid reservoir is installed on fluid reservoir connecting bore, and brake wheel cylinder is installed on brake wheel cylinder connecting bore; The lower surface of described drg body offers motor mounting hole and motor power via hole, and motor is installed on motor mounting hole; The side opening of described drg body is provided with plunger pump mounting hole, and plunger pump is installed in plunger pump mounting hole; The upper surface of described drg body is connected with hydraulic regulating device, electronic control package is connected with hydraulic regulating device, and the upper surface of drg body offers two reducing valve mounting holes side by side, four pressure charging valve mounting holes side by side, four limiting valve mounting holes side by side, a normally closed solenoid valve mounting hole, pressure sensor mounting hole, a normally open solenoid valve mounting hole; Reducing valve in hydraulic regulating device is installed on reducing valve mounting hole, and pressure charging valve is installed on pressure charging valve mounting hole, and limiting valve is installed on limiting valve mounting hole; Normally closed solenoid valve in electronic control package is installed on normally closed solenoid valve mounting hole, and normally open solenoid valve is installed on normally open solenoid valve mounting hole, and master cylinder pressure sensor is installed on pressure sensor mounting hole.
As preferably, normally closed solenoid valve in described electronic control package is connected with the first epitrochoidal chamber in master cylinder, the second epitrochoidal chamber by pipeline, and be also connected with master cylinder pressure sensor in the first epitrochoidal chamber, two pieces of pistons are provided with in described master cylinder, by this piston, master cylinder is divided into the first epitrochoidal chamber, the second epitrochoidal chamber and fluid infusion chamber, in this first epitrochoidal chamber, the second epitrochoidal chamber, is placed with retracing spring; Normally open solenoid valve in electronic control package is connected with the fluid infusion chamber in master cylinder by pipeline, and this fluid infusion chamber is connected with brake pedal by brake pedal adaptor union, between this fluid infusion chamber and brake pedal, be provided with displacement pickup; Normally closed solenoid valve is also connected with fluid reservoir by plunger pump, and normally open solenoid valve is also connected with fluid reservoir.
As preferably, described pressure charging valve comprises the first pressure charging valve, the second pressure charging valve, the 3rd pressure charging valve and the 4th pressure charging valve, first pressure charging valve, the second pressure charging valve are connected with the first epitrochoidal chamber by pipeline, and the 3rd pressure charging valve, the 4th pressure charging valve are connected with the second epitrochoidal chamber by pipeline.
As preferably, described limiting valve comprises the first limiting valve, the second limiting valve, the 3rd limiting valve and the 4th limiting valve, and reducing valve comprises the first reducing valve, the second reducing valve; First limiting valve, the second limiting valve are connected with the first reducing valve by pipeline, and the 3rd limiting valve, the 4th limiting valve are connected with the second reducing valve; This first reducing valve, the second reducing valve are connected on fluid reservoir together.
As preferably, described brake wheel cylinder comprises front left brake wheel cylinder, rear right brake wheel cylinder, rear left brake wheel cylinder and front right brake wheel cylinder, first pressure charging valve is connected with front left brake wheel cylinder with the first limiting valve, second pressure charging valve is connected with rear right brake wheel cylinder with the second limiting valve, 3rd pressure charging valve is connected with rear left brake wheel cylinder with the 3rd limiting valve, and the 4th pressure charging valve is connected with front right brake wheel cylinder with the 4th limiting valve; And each brake wheel cylinder is provided with wheel speed sensors, between each pressure charging valve and limiting valve, be provided with pressure sensor.
The beneficial effects of the utility model are: when 1, not having vacuum servo unit on battery-driven car, realize the similar braking mode having vacuum servo unit, can install and use simultaneously, save the structure of vacuum servo unit complexity on fuel vehicle; 2, adopt pedal simulation mechanism, simultaneously system optimizing control, decrease pedal top feel and feel, improve driver comfort.
Accompanying drawing explanation
Fig. 1 is principle schematic of the present utility model.
Fig. 2 is integral structure schematic diagram of the present utility model.
Fig. 3 is drg body construction schematic diagram of the present utility model.
Fig. 4 is the backsight structural representation of Fig. 3.
Fig. 5 be Fig. 3 look up structural representation.
Fig. 6 is the mounting structure schematic diagram of drg body of the present utility model.
Fig. 7 is existing ABS hydraulic principle schematic diagram.
Label in accompanying drawing is respectively: 1, fluid reservoir; 2, hydraulic regulating device; 3, electronic control package; 4, drg body; 5, keysets; 6, dust boot; 7, brake pedal adaptor union; 8, master cylinder cavity volume; 9, master cylinder; 10, pressure sensor; 11, motor; 12, master cylinder pressure sensor; 13, brake pedal; 14, displacement pickup; 15, wheel speed sensors; 21, plunger pump; 22, reducing valve; 23, limiting valve; 24, pressure charging valve; 31, normally closed solenoid valve; 32, normally open solenoid valve; 40, pressure sensor mounting hole; 41, fluid reservoir connecting bore; 42, brake wheel cylinder connecting bore; 43, motor mounting hole; 44, motor power via hole; 45, plunger pump mounting hole; 46, reducing valve mounting hole; 47, pressure charging valve mounting hole; 48, limiting valve mounting hole; 49, normally closed solenoid valve mounting hole; 50, normally open solenoid valve mounting hole; 81, master cylinder hole; 91, the first epitrochoidal chamber; 92, the second epitrochoidal chamber; 93, retracing spring; 94, fluid infusion chamber; 95, piston; 101, front left brake wheel cylinder; 102, rear right brake wheel cylinder; 103, rear left brake wheel cylinder; 104, front right brake wheel cylinder; 221, the first reducing valve; 222, the second reducing valve; 231, the first limiting valve; 232, the second limiting valve; 233, the 3rd limiting valve; 234, the 4th limiting valve; 241, the first pressure charging valve is drawn together; 242, the second pressure charging valve; 243, the 3rd pressure charging valve; 244, the 4th pressure charging valve.
Detailed description of the invention
Below in conjunction with accompanying drawing, detailed introduction is done to the utility model: as shown in accompanying drawing 2 to 6, the utility model comprises fluid reservoir 1, hydraulic regulating device 2, electronic control package 3, drg body 4, keysets 5, dust boot 6, brake pedal adaptor union 7, master cylinder cavity volume 8 is provided with between the front surface of described drg body 4 and lower surface, master cylinder cavity volume 8 offers master cylinder hole 81, master cylinder hole 81 is fixedly connected with keysets 5, brake pedal adaptor union 7 is connected with keysets 5, and keysets 5 is provided with dust boot 6; The rear surface of described drg body 4 offers two fluid reservoir connecting bores 41 side by side and four brake wheel cylinder connecting bores 42 side by side, and fluid reservoir 1 is installed on fluid reservoir connecting bore 41, and brake wheel cylinder is installed on brake wheel cylinder connecting bore 42; The lower surface of described drg body 4 offers motor mounting hole 43 and motor power via hole 44, and motor 11 is installed on motor mounting hole 43; The side opening of described drg body 4 is provided with plunger pump mounting hole 45, and plunger pump 21 is installed in plunger pump mounting hole 45; The upper surface of described drg body 4 is connected with hydraulic regulating device 2, electronic control package 3 is connected with hydraulic regulating device 2, and the upper surface of drg body 4 offers two reducing valve mounting holes side by side 46, four pressure charging valve mounting hole 47, four side by side limiting valve mounting hole 48, normally closed solenoid valve mounting hole 49, pressure sensor mounting hole 40, normally open solenoid valve mounting hole 50 side by side; Reducing valve 22 in hydraulic regulating device 2 is installed on reducing valve mounting hole 46, and pressure charging valve 24 is installed on pressure charging valve mounting hole 47, and limiting valve 23 is installed on limiting valve mounting hole 48; Normally closed solenoid valve 31 in electronic control package 3 is installed on normally closed solenoid valve mounting hole 49, and normally open solenoid valve 32 is installed on normally open solenoid valve mounting hole 50, and master cylinder pressure sensor 12 is installed on pressure sensor mounting hole 40.
Normally closed solenoid valve 31 in described electronic control package 3 is connected with the first epitrochoidal chamber 91, second epitrochoidal chamber 92 in master cylinder 9 by pipeline, and be also connected with master cylinder pressure sensor 12 in the first epitrochoidal chamber 91, two pieces of pistons 95 are provided with in described master cylinder 9, by this piston, master cylinder 9 is divided into the first epitrochoidal chamber 91, second epitrochoidal chamber 92 and fluid infusion chamber 94, in this first epitrochoidal chamber 91, second epitrochoidal chamber 92, is placed with retracing spring 93; Normally open solenoid valve 32 in electronic control package 3 is connected with the fluid infusion chamber 94 in master cylinder 9 by pipeline, and this fluid infusion chamber 94 is connected with brake pedal 13 by brake pedal adaptor union 7, between this fluid infusion chamber 94 and brake pedal 13, be provided with displacement pickup 14; Normally closed solenoid valve 31 is also connected with fluid reservoir 1 by plunger pump 21, and normally open solenoid valve 32 is also connected with fluid reservoir 1.
Described pressure charging valve 24 comprises the first pressure charging valve 241, second pressure charging valve 242, the 3rd pressure charging valve 243 and the 4th pressure charging valve 244, first pressure charging valve 241, second pressure charging valve 242 is connected with the first epitrochoidal chamber 91 by pipeline, and the 3rd pressure charging valve 243, the 4th pressure charging valve 244 are connected with the second epitrochoidal chamber 92 by pipeline.
Described limiting valve 23 comprises the first limiting valve 231, second limiting valve 232, the 3rd limiting valve 233 and the 4th limiting valve 234, and reducing valve 22 comprises the first reducing valve 221, second reducing valve 222; First limiting valve 231, second limiting valve 232 is connected with the first reducing valve 221 by pipeline, and the 3rd limiting valve 232, the 4th limiting valve 234 are connected with the second reducing valve 222; This first reducing valve 221, second reducing valve 222 is connected on fluid reservoir 1 together.
Described brake wheel cylinder comprises front left brake wheel cylinder 101, rear right brake wheel cylinder 102, rear left brake wheel cylinder 103 and front right brake wheel cylinder 104, first pressure charging valve 241 is connected with front left brake wheel cylinder 101 with the first limiting valve 231, second pressure charging valve 242 is connected with rear right brake wheel cylinder 102 with the second limiting valve 232,3rd pressure charging valve 243 is connected with rear left brake wheel cylinder 103 with the 3rd limiting valve 233, and the 4th pressure charging valve 244 is connected with front right brake wheel cylinder 104 with the 4th limiting valve 234; And each brake wheel cylinder is provided with wheel speed sensors 15, between each pressure charging valve 24 and limiting valve 23, be provided with pressure sensor 10.
Principle of work of the present utility model: as shown in Figure 1: in the conventional brake stage, motor 11 actuation plunger pump 21 works, normally closed solenoid valve 31, normally open solenoid valve 32 are energized, the system pressure that ECU electronic control unit system needs according to displacement pickup 14 stroke decision-making system; When certain wheel has locking trend, ECU electronic control unit system enters vehicle electric stability contorting pattern: this loop pressure charging valve 24 cuts out, limiting valve 23 judges the dutycycle in the control of limiting valve 23 high frequency according to pressure of wheel cylinder situation simultaneously, (when pressure is higher than this pressure of wheel cylinder, pressure release opened by limiting valve 23 to make limiting valve 23 keep critical conditions; When pressure is lower than this pressure of wheel cylinder, limiting valve 23 keeps closed condition.Now limiting valve 23 is all in this state, and reducing valve 22 is all opened simultaneously, and braking liquid of letting out all is discharged to fluid reservoir 1); As this wheel is also in locking state, then suitably reduce limiting valve 23 dutycycle, then electromagnetic force reduces, balance before and after limiting valve 23 between difference force, hydraulic power, electromagnetic force, spring restoring force can be broken, limiting valve 23 limiting pressure reduces, finally cause pressure of wheel cylinder to reduce, now pressure reduction is linear voltage decreasing, reduces the excessive reciprocation cycle causing brake wheel cylinder to need Quick-pressurizing to cause of pulse; During as pressure of wheel cylinder need be increased, then improve limiting valve 23 dutycycle.In subsequent control process, pressure charging valve 24 also regulates the linear supercharging of Duty ratio control brake wheel cylinder by high frequency, thus ensures pressure suitable in brake wheel cylinder.
Be understandable that, for a person skilled in the art, the technical solution of the utility model and utility model design be equal to and replace or change the protection domain that all should belong to the claim appended by the utility model.
Claims (5)
1. the novel WBS car brake of pure electric automobile, it is characterized in that: comprise fluid reservoir (1), hydraulic regulating device (2), electronic control package (3), drg body (4), keysets (5), dust boot (6) and brake pedal adaptor union (7), master cylinder cavity volume (8) is provided with between the front surface of described drg body (4) and lower surface, master cylinder cavity volume (8) offers master cylinder hole (81), master cylinder hole (81) is fixedly connected with keysets (5), brake pedal adaptor union (7) is connected with keysets (5), and keysets (5) is provided with dust boot (6), the rear surface of described drg body (4) offers two fluid reservoir connecting bores (41) side by side and four brake wheel cylinder connecting bores (42) side by side, fluid reservoir (1) is installed on fluid reservoir connecting bore (41), and brake wheel cylinder is installed on brake wheel cylinder connecting bore (42), the lower surface of described drg body (4) offers motor mounting hole (43) and motor power via hole (44), and motor (11) is installed on motor mounting hole (43), the side opening of described drg body (4) is provided with plunger pump mounting hole (45), and plunger pump (21) is installed in plunger pump mounting hole (45), the upper surface of described drg body (4) is connected with hydraulic regulating device (2), electronic control package (3) is connected with hydraulic regulating device (2), and the upper surface of drg body (4) offers two reducing valve mounting holes (46) side by side, four pressure charging valve mounting holes (47) side by side, four limiting valve mounting holes (48) side by side, a normally closed solenoid valve mounting hole (49), a pressure sensor mounting hole (40), a normally open solenoid valve mounting hole (50), reducing valve (22) in hydraulic regulating device (2) is installed on reducing valve mounting hole (46), pressure charging valve (24) is installed on pressure charging valve mounting hole (47), and limiting valve (23) is installed on limiting valve mounting hole (48), normally closed solenoid valve (31) in electronic control package (3) is installed on normally closed solenoid valve mounting hole (49), normally open solenoid valve (32) is installed on normally open solenoid valve mounting hole (50), and master cylinder pressure sensor (12) is installed on pressure sensor mounting hole (40).
2. the novel WBS car brake of pure electric automobile according to claim 1, it is characterized in that: the normally closed solenoid valve (31) in described electronic control package (3) is by the first epitrochoidal chamber (91) in pipeline and master cylinder (9), second epitrochoidal chamber (92) is connected, and be also connected with master cylinder pressure sensor (12) in the first epitrochoidal chamber (91), two pieces of pistons (95) are provided with in described master cylinder (9), by this piston, master cylinder (9) is divided into the first epitrochoidal chamber (91), second epitrochoidal chamber (92) and fluid infusion chamber (94), this first epitrochoidal chamber (91), retracing spring (93) is placed with in second epitrochoidal chamber (92), normally open solenoid valve (32) in electronic control package (3) is connected with the fluid infusion chamber (94) in master cylinder (9) by pipeline, this fluid infusion chamber (94) is connected with brake pedal (13) by brake pedal adaptor union (7), between this fluid infusion chamber (94) and brake pedal (13), be provided with displacement pickup (14), normally closed solenoid valve (31) is also connected with fluid reservoir (1) by plunger pump (21), and normally open solenoid valve (32) is also connected with fluid reservoir (1).
3. the novel WBS car brake of pure electric automobile according to claim 1, it is characterized in that: described pressure charging valve (24) comprises the first pressure charging valve (241), the second pressure charging valve (242), the 3rd pressure charging valve (243) and the 4th pressure charging valve (244), first pressure charging valve (241), the second pressure charging valve (242) are connected with the first epitrochoidal chamber (91) by pipeline, and the 3rd pressure charging valve (243), the 4th pressure charging valve (244) are connected with the second epitrochoidal chamber (92) by pipeline.
4. the novel WBS car brake of pure electric automobile according to claim 1, it is characterized in that: described limiting valve (23) comprises the first limiting valve (231), the second limiting valve (232), the 3rd limiting valve (233) and the 4th limiting valve (234), and reducing valve (22) comprises the first reducing valve (221), the second reducing valve (222); First limiting valve (231), the second limiting valve (232) are connected with the first reducing valve (221) by pipeline, and the 3rd limiting valve (232), the 4th limiting valve (234) are connected with the second reducing valve (222); This first reducing valve (221), the second reducing valve (222) are connected on fluid reservoir (1) together.
5. the novel WBS car brake of pure electric automobile according to claim 1, it is characterized in that: described brake wheel cylinder comprises front left brake wheel cylinder (101), rear right brake wheel cylinder (102), rear left brake wheel cylinder (103) and front right brake wheel cylinder (104), first pressure charging valve (241) is connected with front left brake wheel cylinder (101) with the first limiting valve (231), second pressure charging valve (242) is connected with rear right brake wheel cylinder (102) with the second limiting valve (232), 3rd pressure charging valve (243) is connected with rear left brake wheel cylinder (103) with the 3rd limiting valve (233), 4th pressure charging valve (244) is connected with front right brake wheel cylinder (104) with the 4th limiting valve (234), and each brake wheel cylinder is provided with wheel speed sensors (15), between each pressure charging valve (24) and limiting valve (23), be provided with pressure sensor (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520072367.4U CN204488784U (en) | 2015-02-02 | 2015-02-02 | The novel WBS car brake of pure electric automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520072367.4U CN204488784U (en) | 2015-02-02 | 2015-02-02 | The novel WBS car brake of pure electric automobile |
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| Publication Number | Publication Date |
|---|---|
| CN204488784U true CN204488784U (en) | 2015-07-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520072367.4U Expired - Fee Related CN204488784U (en) | 2015-02-02 | 2015-02-02 | The novel WBS car brake of pure electric automobile |
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| CN (1) | CN204488784U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104608753A (en) * | 2015-02-02 | 2015-05-13 | 杭州金兰达新能源科技有限公司 | Novel vehicle brake of WBS for pure electric vehicle |
| CN108407788A (en) * | 2018-02-12 | 2018-08-17 | 浙江亚太机电股份有限公司 | Recovering Waste Energy of Braking in Automobiles system with pedal sense feedback |
| CN108454600A (en) * | 2018-02-12 | 2018-08-28 | 浙江亚太机电股份有限公司 | The control system and method for auto pedal sense feedback based on decoupling braking system |
-
2015
- 2015-02-02 CN CN201520072367.4U patent/CN204488784U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104608753A (en) * | 2015-02-02 | 2015-05-13 | 杭州金兰达新能源科技有限公司 | Novel vehicle brake of WBS for pure electric vehicle |
| CN108407788A (en) * | 2018-02-12 | 2018-08-17 | 浙江亚太机电股份有限公司 | Recovering Waste Energy of Braking in Automobiles system with pedal sense feedback |
| CN108454600A (en) * | 2018-02-12 | 2018-08-28 | 浙江亚太机电股份有限公司 | The control system and method for auto pedal sense feedback based on decoupling braking system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150722 Termination date: 20170202 |
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| CF01 | Termination of patent right due to non-payment of annual fee |