CN102294997B - Sensation simulator of automobile brake pedal - Google Patents
Sensation simulator of automobile brake pedal Download PDFInfo
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- CN102294997B CN102294997B CN 201110160378 CN201110160378A CN102294997B CN 102294997 B CN102294997 B CN 102294997B CN 201110160378 CN201110160378 CN 201110160378 CN 201110160378 A CN201110160378 A CN 201110160378A CN 102294997 B CN102294997 B CN 102294997B
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Abstract
The invention discloses a sensation simulator of an automobile brake pedal. The rod-free cavity of a main braking cylinder is provided with a piston return spring and is respectively communicated with an oil storage cup and the input end of a two-position three-way solenoid valve; the brake pedal is respectively connected with the push rod of the main cylinder braking piston and a pedal travel sensor; and two output ends of the two-position three-way solenoid valve are respectively connected with a hydraulic control unit (HCU) and a simulator valve block. According to the sensation simulator, the braking sensation of a driver can be accurately obtained, and the pedal feeling of the driver can be fed back. The traditional hydraulic braking system is improved slightly, and the sensation simulator is installed on the main braking cylinder or is integrated with the HCU. The sensation simulator has the advantages of small volume, low cost and small difficulty. Under the condition that a motor-driven hydraulic braking system fails, the traditional hydraulic braking system can be subjected to emergent braking. The sensation simulator of an automobile brake pedal and the HCU guarantee good braking feeling under the coordination control of an electronic control unit (ECU).
Description
Technical field
The present invention relates to simulator for feeling automobile brake pedal, relate in particular to a kind of simulator for feeling automobile brake pedal that can feed back pedal sense.
Background technology
Brake system is the important leverage of vehicle safety travel.Compare traditional hydraulic brake system, the electric control hydraulic braking system has simple in structure, and braking response is fast, and control accuracy is high, flexible arrangement, the plurality of advantages such as the pedal characteristic is consistent; And easy and automobile brake control system is integrated, and can satisfy the regeneration brake system demand of electronlmobil and hybrid vehicle, has good development prospect.
Inquire about through the Patents documents and materials, brake pedal feel simulator aspect patent has in the vehicle electrically controlling hydraulic brake system of brake-force generating device (German patent publication No. CN101341055A), the development of BOSCH company of pedal simulator (U.S. US6464306B2), the hydraulic vehicle brake system of integrated power sensor and stroke sensor with a kind of action simulation device (patent publication No. CN1419505A) etc., these devices only carry out design and research from obtaining chaufeur braking intention, and complex structure, tooling cost are high.
Because the electric control hydraulic braking system has cancelled brake pedal and has been connected with the direct of brake wheel cylinder, so can accurately, reliably reflect chaufeur braking intention, can provide again the pedal sense simulator of the good brake pedal feel of chaufeur to become one of difficult point of electric control hydraulic braking system.
Summary of the invention
In order to overcome the deficiency of background technology, the object of the invention is to propose to feed back a kind of simulator for feeling automobile brake pedal of pedal sense.
The technical solution used in the present invention:
The present invention includes oil storage cup, master brake cylinder, brake pedal, pedal stroke sensor, piston return spring, two-position three way magnetic valve and simulator valve piece; Piston return spring is installed in the rodless cavity of master brake cylinder, and the rodless cavity of master brake cylinder is communicated with oil storage cup and two-position three way magnetic valve input end respectively; Brake pedal is connected with pedal stroke sensor with the push rod of brake master cylinder piston respectively, and two mouths of two-position three way magnetic valve are connected with simulator valve piece with hydraulic control unit HCU respectively.
Described simulator valve piece comprises simulator valve body, emulator piston, bump rubber, simulator spring, spring end cap, ladder piston, piston spring, piston end cap and breather filter; In the hole of simulator valve body one side, emulator piston is installed, bump rubber is housed in the emulator piston, and be connected with the spring end cap by being installed in the outer simulator spring of emulator piston; The ladder piston is installed in the hole of simulator valve body opposite side, the small end of ladder piston down, piston spring is installed in the hole of ladder piston small end, the other end of piston spring and mounting hole end contact, the piston end cap is installed in the large end ladder mounting hole of simulator valve body, and the simulator valve body air extractor vent that is positioned at the ladder piston end communicates with atmosphere by breather filter; Be the liquid in-out mouth after ladder piston small end chamber is communicated with the emulator piston chamber, this liquid in-out mouth is connected with the normally closed mouth of two-position three way magnetic valve.
The beneficial effect that the present invention has is:
1) can accurately obtain chaufeur braking intention and timely feedback driver pedal sensation;
2) less in the change of conventional hydraulic brake system, can be installed on the master brake cylinder, also can be integrated with hydraulic control unit HCU, volume is little, and cost is low, and difficulty is little;
3) in the situation of electric control hydraulic braking thrashing, utilize traditional hydraulic brake system to realize emergency brake;
4) simulator for feeling automobile brake pedal and hydraulic control unit HCU guarantee good brake feel under ECU (Electrical Control Unit) ECU coordinates.
Description of drawings
Fig. 1 is the principle schematic of simulator for feeling automobile brake pedal.
Fig. 2 is the section of structure of simulator for feeling automobile brake pedal valve piece.
Fig. 3 is treadle effort and the pedal stroke graph of relation of simulator for feeling automobile brake pedal.
Among the figure: 101. oil storage cups; 102. master brake cylinder; 103. push rod; 104. brake pedal; 105. pedal stroke sensor; 106. brake master cylinder piston; 107. piston return spring; 108. two-position three way magnetic valve; 109. simulator valve piece; 110. hydraulic control unit HCU; 111. wheel; 201. bump rubber; 202. simulator spring; 203. spring end cap; 204. jump ring; 205. ladder piston; 206. piston end cap; 207. seal ring; 208. jump ring; 209. seal ring; 210. breather filter; 211. through hole nut; 212. flat shim; 213. seal ring; 214. piston spring; 215. seal ring; 216. simulator valve body; 217. emulator piston.
The specific embodiment
The present invention is further illustrated below in conjunction with drawings and Examples.
As shown in Figure 1, the present invention includes oil storage cup 101, master brake cylinder 102, brake pedal 104, pedal stroke sensor 105, piston return spring 107, two-position three way magnetic valve 108 and simulator valve piece 109; Piston return spring 107 is installed in the rodless cavity of master brake cylinder 102, and the rodless cavity of master brake cylinder 102 is communicated with oil storage cup 101 and two-position three way magnetic valve 108 input ends respectively; Brake pedal 104 is connected with pedal stroke sensor with the push rod 103 of brake master cylinder piston 106 respectively and is connected, and two mouths of two-position three way magnetic valve 108 are connected with simulator valve piece with hydraulic control unit HCU 110 respectively and are connected.
As shown in Figure 2, described simulator valve piece 109 comprises simulator valve body 216, emulator piston 217, bump rubber 201, simulator spring 202, spring end cap 203, ladder piston 205, piston spring 214, piston end cap 206 and breather filter 210; Emulator piston 217 is installed in the hole of simulator valve body 216 1 sides, bump rubber 201 is housed in the emulator piston 217, and be connected with spring end cap 203 by being installed in emulator piston 217 outer simulator springs 202; Ladder piston 205 is installed in the hole of simulator valve body 216 opposite sides, the small end of ladder piston 205 down, piston spring 214 is installed in the hole of ladder piston 205 small ends, the other end of piston spring 214 and mounting hole end contact, piston end cap 206 is installed in the large end ladder mounting hole of simulator valve body 216, simulator valve body 216 air extractor vents that are positioned at ladder piston 205 ends communicate with atmosphere by breather filter 210, and through hole nut 211 is pressed on the vent filter 210 by flat shim 212; Be the liquid in-out mouth after ladder piston 205 small end chambeies are communicated with emulator piston 217 chambeies, this liquid in-out mouth is connected with two-position three way magnetic valve 108 normally closed mouths.Simulator for feeling automobile brake pedal can be according to the size of brake pedal 104 apertures, the brake noise sealed up for safekeeping in the master brake cylinder 102 is entered or flows out simulator valve piece 109 through two-position three way magnetic valve 108, and the braking oil pressure that simulator valve piece 109 is produced is delivered to brake pedal 104 by master brake cylinder 102.
Between the hole of emulator piston 217 large ends and simulator valve body 216 1 sides seal ring 215 is set, spring end cap 203 outer faces are fixing with jump ring 204.Seal ring 209 and seal ring 213 are set respectively between the hole of the large and small end of ladder piston 205 and simulator valve body 216 opposite sides, and piston end cap 206 outer faces are fixing with jump ring 208.
As shown in Figure 3, be treadle effort and the pedal stroke graph of relation of simulator for feeling automobile brake pedal.Pass through optimal design simulator spring 202 rigidity, piston spring 214 rigidity, the rigidity of bump rubber 201, emulator piston 217 sizes, ladder piston 205 sizes in this example, so that the simulating brake pedal characteristic curve of simulator for feeling automobile brake pedal is very near desirable brake pedal characteristic curve.
In the situation of electric control hydraulic braking system normal operation, two-position three way magnetic valve 108 and power connection, master brake cylinder 102 is connected with simulator valve piece 109 by two-position three way magnetic valve 108.When brake pedal 104 apertures not quite (were slightly braked), master brake cylinder 102 entered in the simulator valve piece 109 by two-position three way magnetic valve 108, and this moment, oil pressure was lower, and emulator piston 217 compresses simulator springs 202, is equivalent to the A stage of Fig. 3; When brake pedal 104 apertures large (average braking), bump rubber 201 contacts with spring end cap 203, along with oil pressure raises, and ladder piston 205 compression piston springs 214, simulator spring 202 and bump rubber 201 have mild compression simultaneously, are equivalent to the B stage of Fig. 3; When brake pedal 104 apertures very large (emergency braking), ladder piston 205 compression piston springs 214 do not recompress to a certain position, and simulator spring 202 and bump rubber 201 continue a small amount of compression, are equivalent to the C stage of Fig. 3.By A, B, three stages of C of Fig. 3, realize treadle effort and the pedal stroke graph of relation of simulator for feeling automobile brake pedal shown in Figure 3.
In electric control hydraulic braking thrashing situation, two-position three way magnetic valve 108 disconnects with power supply, master brake cylinder 102 is connected with hydraulic control unit HCU110 by two-position three way magnetic valve 108, hydraulic control unit HCU110 is connected with wheel 111 drgs, when depressing brake pedal 104, master brake cylinder 102 oil pressure act on wheel 111 drgs, directly realize braking.
Above-described embodiment is to explanation of the present invention, is not limitation of the present invention, and any structure after simple transformation on the basis of the present invention all belongs to protection scope of the present invention.
Claims (1)
1. a simulator for feeling automobile brake pedal is characterized in that: comprise oil storage cup (101), master brake cylinder (102), brake pedal (104), pedal stroke sensor (105), piston return spring (107), two-position three way magnetic valve (108) and simulator valve piece (109); Piston return spring (107) is installed in the rodless cavity of master brake cylinder (102), and the rodless cavity of master brake cylinder (102) is communicated with oil storage cup (101) and two-position three way magnetic valve (108) input end respectively; Brake pedal (104) is connected 105 with the push rod (103) of brake master cylinder piston (106) with pedal stroke sensor respectively) be connected, two mouths of two-position three way magnetic valve (108) are connected 109 with hydraulic control unit HCU (110) with simulator valve piece respectively) be connected;
Described simulator valve piece (109) comprises simulator valve body (216), emulator piston (217), bump rubber (201), simulator spring (202), spring end cap (203), ladder piston (205), piston spring (214), piston end cap (206) and breather filter (210); Emulator piston (217) is installed in the hole of simulator valve body (216) one sides, bump rubber (201) is housed in the emulator piston (217), and is connected with spring end cap (203) by being installed in the outer simulator spring (202) of emulator piston (217); Ladder piston (205) is installed in the hole of simulator valve body (216) opposite side, the small end of ladder piston (205) down, piston spring (214) is installed in the hole of ladder piston (205) small end, the other end of piston spring (214) and mounting hole end contact, piston end cap (206) is installed in the large end ladder mounting hole of simulator valve body (216), and simulator valve body (216) air extractor vent that is positioned at ladder piston (205) end communicates with atmosphere by breather filter (210); Be the liquid in-out mouth after ladder piston (205) small end chamber is communicated with emulator piston (217) chamber, this liquid in-out mouth is connected with the normally closed mouth of two-position three way magnetic valve (108).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110160378 CN102294997B (en) | 2011-06-15 | 2011-06-15 | Sensation simulator of automobile brake pedal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110160378 CN102294997B (en) | 2011-06-15 | 2011-06-15 | Sensation simulator of automobile brake pedal |
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| CN102294997A CN102294997A (en) | 2011-12-28 |
| CN102294997B true CN102294997B (en) | 2013-03-13 |
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| CN 201110160378 Active CN102294997B (en) | 2011-06-15 | 2011-06-15 | Sensation simulator of automobile brake pedal |
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Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103481879B (en) * | 2013-09-26 | 2015-08-26 | 北京航空航天大学 | The simulation of a kind of electronlmobil line control brake system treadle effort and braking force controller |
| CN103481878B (en) * | 2013-09-26 | 2015-08-26 | 北京航空航天大学 | A kind of brake pedal feel analog machine of automobile line control brake system |
| CN106274869A (en) * | 2016-11-14 | 2017-01-04 | 吉林大学 | The master cylinder of integrated pedal sense simulator |
| CN106864440B (en) * | 2017-01-20 | 2024-02-13 | 南京航空航天大学 | Self-boosting brake pedal feel simulation device |
| CN107323441B (en) * | 2017-07-12 | 2023-08-15 | 浙江亚太机电股份有限公司 | Electric automobile brake pedal simulator |
| CN107472223A (en) * | 2017-08-15 | 2017-12-15 | 宁波拓普智能刹车系统有限公司 | A kind of analogue means of adjustable automobiles brake pedal feel |
| CN107591053A (en) * | 2017-10-18 | 2018-01-16 | 吉林大学 | A kind of steering feel simulation and climb displacement device applied to driving simulator |
| CN107891852A (en) * | 2017-12-18 | 2018-04-10 | 浙江力邦合信智能制动系统股份有限公司 | A kind of pedal simulator |
| CN108032851B (en) * | 2018-01-08 | 2024-01-02 | 吉林大学 | Brake pedal stroke simulator and control method thereof |
| IT201900025318A1 (en) * | 2019-12-23 | 2021-06-23 | Freni Brembo Spa | ADJUSTABLE PRESSURE SIMULATOR DEVICE FOR BRAKING SYSTEM OF BRAKE BY WIRE VEHICLES |
| EP4101710B1 (en) * | 2020-03-09 | 2024-02-14 | Huawei Technologies Co., Ltd. | Brake system, brake method and vehicle |
| CN114148306B (en) * | 2020-09-08 | 2023-03-10 | 蜂巢智能转向系统(江苏)有限公司 | Automobile brake system and control method thereof |
| CN112277904B (en) * | 2020-10-10 | 2022-01-04 | 精诚工科汽车系统有限公司 | Pedal feel simulator and car |
| CN113306539A (en) * | 2021-06-30 | 2021-08-27 | 吉林东光奥威汽车制动系统有限公司 | Electronic brake boosting system and method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6135572A (en) * | 1996-05-31 | 2000-10-24 | Varity Gmbh | Actuation unit for an electronically controlled vehicle brake system |
| DE102007016975A1 (en) * | 2007-04-10 | 2008-10-16 | Bayerische Motoren Werke Aktiengesellschaft | Actuating device for brake system of motor vehicle i.e. electrohydraulical vehicle, has piston and pedal, where transmission of movement of pedal on piston is formed such that force applied on pedal causes larger force on piston |
| CN101879891A (en) * | 2010-06-29 | 2010-11-10 | 浙江亚太机电股份有限公司 | Simulator for feeling automobile brake pedal |
| CN202130438U (en) * | 2011-06-15 | 2012-02-01 | 浙江亚太机电股份有限公司 | Feeling simulator of automotive brake pedal |
-
2011
- 2011-06-15 CN CN 201110160378 patent/CN102294997B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6135572A (en) * | 1996-05-31 | 2000-10-24 | Varity Gmbh | Actuation unit for an electronically controlled vehicle brake system |
| DE102007016975A1 (en) * | 2007-04-10 | 2008-10-16 | Bayerische Motoren Werke Aktiengesellschaft | Actuating device for brake system of motor vehicle i.e. electrohydraulical vehicle, has piston and pedal, where transmission of movement of pedal on piston is formed such that force applied on pedal causes larger force on piston |
| CN101879891A (en) * | 2010-06-29 | 2010-11-10 | 浙江亚太机电股份有限公司 | Simulator for feeling automobile brake pedal |
| CN202130438U (en) * | 2011-06-15 | 2012-02-01 | 浙江亚太机电股份有限公司 | Feeling simulator of automotive brake pedal |
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| CN102294997A (en) | 2011-12-28 |
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Application publication date: 20111228 Assignee: Bei Jinghai Na Chuan automobile chassis System Co., Ltd Assignor: Zhejiang Yatai Mechanical & Electrical Co., Ltd. Contract record no.: 2014990000295 Denomination of invention: Simulator for feeling automobile brake pedal Granted publication date: 20130313 License type: Exclusive License Record date: 20140514 |
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