CN103171558A - Hill starting assistant system - Google Patents
Hill starting assistant system Download PDFInfo
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- CN103171558A CN103171558A CN2013100978749A CN201310097874A CN103171558A CN 103171558 A CN103171558 A CN 103171558A CN 2013100978749 A CN2013100978749 A CN 2013100978749A CN 201310097874 A CN201310097874 A CN 201310097874A CN 103171558 A CN103171558 A CN 103171558A
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Abstract
A hill starting assistant system comprises a foot brake valve and a one-way valve. The foot brake valve is connected with one end of the one-way valve, the other end of the one-way valve is connected with a quick release valve, the other end of the quick release valve is connected with a first end of a normally closed relay, a second end of the normally closed relay is connected with a neutral position switch, a third end of the normally closed relay is connected with a first end of a pressure switch, a second end of the pressure switch is connected in a pipeline between the quick release valve and the one-way valve in series, a third end of the pressure switch is connected with an input of an ECU control module, an output of the ECU control module is connected with an input end of a normally open relay, an output end of the normally open relay is connected with an input end of a two-position two-way electromagnetic valve, the two-position two-way electromagnetic valve is connected with the one-way valve in parallel, and an output end of the two-position two-way electromagnetic valve is connected with the foot brake valve. The hill starting assistant system not only does not affect a normal braking function of a vehicle, but also achieves the hill starting assistant function, relieves dependence on the driving skill of a driver and the psychological burden when the driver starts the vehicle on a hill, ensures that the driver can start the vehicle smoothly on a hill and ensures driving safety in the hill starting process.
Description
Technical field
The present invention is specifically related to a kind of uphill starting ancillary system, especially relates to a kind of uphill starting ancillary system of large and medium bus.
Background technology
When large and medium bus is started to walk on the ramp at present, be all to lean on the cooperation of the limbs of chaufeur to complete.Be generally that left hand is controlled parking brake, the right hand is controlled bearing circle, and left foot is controlled clutch, and right crus of diaphragm is controlled throttle, by the cooperation uphill starting of these four actions.Do like this, if the driving quality of chaufeur is skilled not, control not precisely, tend to cause " slip car ", rear car is caused adverse effect, very likely can cause danger.
Summary of the invention
For solving the deficiencies in the prior art, the present invention specifically discloses a kind of uphill starting ancillary system.
Concrete scheme of the present invention is as follows:
a kind of uphill starting ancillary system, comprise: foot brake valves, check valve, described foot brake valves is connected with check valve one end, the check valve other end is connected with rapid release valve, the other end of rapid release valve is connected with the normal closing type relay first end, the second end of normal closing type relay is connected with neutral switch, the 3rd end of normal closing type relay is connected with the first end of pressure switch, the second end of pressure switch is serially connected in pipeline between rapid release valve and check valve, the 3rd end of pressure switch is connected with the input of ECU control module, the output of ECU control module is connected with relay input end open in usual, relay output end open in usual is connected with 2/2-way electromagnetic valve input end, 2/2-way electromagnetic valve and check valve are in parallel, 2/2-way electromagnetic valve mouth is connected with foot brake valves.
A kind of uphill starting ancillary system, its control step is:
Step 1 when vehicle is parked on the ramp, when chaufeur has the intention of uphill starting, is stepped on foot brake valves, unclamps parking brake, and vehicle can " do not slip car ";
Step 2, chaufeur be according to normal starting program, handles gear level and make change-speed box be placed in the position of starting gear, be generally 1 grade or 2 grades, system sends the uphill starting signal to the ECU control module, and simultaneously, the ECU control module is also with the vehicle speed signal of constantly accepting to be sent by mileage meter;
Step 3, the speed of a motor vehicle is generally lower when uphill starting, and the ECU control module judges that just vehicle is to be in the starting state, namely enables the uphill starting control program, and when the speed of a motor vehicle was large, the ECU control module judged that vehicle is the normal brake application state, enables the normal brake application control program.
The invention has the beneficial effects as follows:
This uphill starting ancillary system actv. has prevented that the phenomenon of " slip car " from occuring, the improvement of this uphill starting ancillary system is pointed and intelligent, realized the uphill starting function from the vehicle self structure, both do not affected the normal brake application function of vehicle, realized again simultaneously the uphill starting additional function, alleviate the psychological burden when the uphill starting to the dependence of chaufeur driving quality and chaufeur, guaranteed the travel safety of chaufeur in the time starting smoothly vehicle and vehicle at uphill starting on the ramp.
Description of drawings
Fig. 1 car ramp starting ancillary system constructional drawing;
1 foot brake valves in Fig. 1,2 check valves, 3 2/2-way electromagnetic valves, 4ECU control module, 5 pressure switches, 6 normal closing type relays, 7 neutral switchs, 8 rapid release valves, 9 relays open in usual.
The specific embodiment
Below in conjunction with accompanying drawing, invention is elaborated:
When vehicle is parked on the ramp, when chaufeur has the intention of uphill starting, only need step on foot brake valves 1, then unclamp parking brake, thereby pressurized air enters compressed air brake cylinder via foot brake valves 1, check valve 2, rapid release valve 8 and realizes braking function at this moment, so unclamp parking brake this moment, vehicle can't " slip car ".Because pressure switch 5 is serially connected in brake piping, it is sensed the pressure in brake piping and makes switch be in closure state.Then chaufeur is according to normal starting program, handle gear level and make change-speed box be placed in the position (being generally 1 grade or 2 grades) of starting gear, the space switch 7 that be positioned at change speed gear box inside this moment is in off-state, normal closing type relay 6 closures, at this moment, system sends the uphill starting signal to ECU control module 4, and simultaneously, ECU control module 4 is also with the vehicle speed signal of constantly accepting to be sent by mileage meter.According to rule, the speed of a motor vehicle is generally lower when uphill starting, and we set to only have and only set for discussing to facilitate less than this value of 3Km/h(when the speed of a motor vehicle here) time ECU control module 4 judge that just vehicle is to be in the starting state, namely enables the uphill starting control program; When the speed of a motor vehicle more than or equal to this value of 3Km/h(only for discussing convenient the setting) time ECU control module 4 judge that vehicles are normal brake application states, enable the normal brake application control program.The difference of these two kinds of control programs is in ECU control module 4: in the uphill starting control program, the ECU output signal will postpone certain hour (usually being set as 2 seconds) output, purpose is in order to make relay 9 open in usual postpone 2 seconds closures, braking pressure in brake piping will be held 2 seconds at this moment, thereby realize that vehicle keeps the braking mode of 2 seconds automatically, driver assistance is realized the uphill starting intention easily; In the normal brake application control program, the ECU output signal will be exported immediately, make relay 9 open in usual closed immediately, thereby 2/2-way electromagnetic valve 3 is connected, at this moment, if chaufeur unclamps foot brake valves 1, thereby the braking pressure in brake piping will make 2/2-way electromagnetic valve 3, foot brake valves 1 and discharge via rapid release valve 8, realizes the intention of the quick brake off of chaufeur.
According to above-mentioned control principle, when the speed of a motor vehicle less than this value of 3Km/h(only for discussing convenient the setting) and chaufeur when stepping on foot brake valves 1, ECU control module 4 judges that namely the driving intention of chaufeur is uphill starting, starts the uphill starting control program, and driver assistance is realized the purpose of uphill starting; When the speed of a motor vehicle more than or equal to this value of 3Km/h(only for discussing convenient the setting) and chaufeur when stepping on foot brake valves 1, ECU control module 4 judges that namely the driving intention of chaufeur is normal brake application, starts the normal brake application control program, realizes the purpose of normal brake application.
Claims (2)
1. uphill starting ancillary system, comprise: foot brake valves, check valve, described foot brake valves is connected with check valve one end, the check valve other end is connected with rapid release valve, the other end of rapid release valve is connected with the normal closing type relay first end, the second end of normal closing type relay is connected with neutral switch, the 3rd end of normal closing type relay is connected with the first end of pressure switch, the second end of pressure switch is serially connected in pipeline between rapid release valve and check valve, the 3rd end of pressure switch is connected with the input of ECU control module, the output of ECU control module is connected with relay input end open in usual, relay output end open in usual is connected with 2/2-way electromagnetic valve input end, 2/2-way electromagnetic valve and check valve are in parallel, 2/2-way electromagnetic valve mouth is connected with foot brake valves.
2. a kind of uphill starting ancillary system claimed in claim 1, its control step is:
Step 1 when vehicle is parked on the ramp, when chaufeur has the intention of uphill starting, is stepped on foot brake valves, unclamps parking brake, and vehicle can " do not slip car ";
Step 2, chaufeur be according to normal starting program, handles gear level and make change-speed box be placed in the position of starting gear, be generally 1 grade or 2 grades, system sends the uphill starting signal to the ECU control module, and simultaneously, the ECU control module is also with the vehicle speed signal of constantly accepting to be sent by mileage meter;
Step 3, the speed of a motor vehicle is generally lower when uphill starting, and the ECU control module judges that just vehicle is to be in the starting state, namely enables the uphill starting control program, and when the speed of a motor vehicle was large, the ECU control module judged that vehicle is the normal brake application state, enables the normal brake application control program.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310097874.9A CN103171558B (en) | 2013-03-25 | 2013-03-25 | A kind of uphill starting ancillary system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310097874.9A CN103171558B (en) | 2013-03-25 | 2013-03-25 | A kind of uphill starting ancillary system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103171558A true CN103171558A (en) | 2013-06-26 |
| CN103171558B CN103171558B (en) | 2016-03-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310097874.9A Active CN103171558B (en) | 2013-03-25 | 2013-03-25 | A kind of uphill starting ancillary system |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6332654B1 (en) * | 1998-05-21 | 2001-12-25 | Mitsubishi Denki Kabushiki Kaisha | Grade-holding brake system |
| CN101778749A (en) * | 2007-04-19 | 2010-07-14 | 雷诺股份公司 | Hill start assistance method and associated device |
| CN101870288A (en) * | 2010-06-11 | 2010-10-27 | 烟台汽车工程职业学院 | Automobile parking auxiliary braking system |
| CN102128064A (en) * | 2011-03-29 | 2011-07-20 | 刘冬生 | Vehicle engine braking system and control circuit thereof |
| CN203157989U (en) * | 2013-03-25 | 2013-08-28 | 中通客车控股股份有限公司 | Hill starting auxiliary system |
-
2013
- 2013-03-25 CN CN201310097874.9A patent/CN103171558B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6332654B1 (en) * | 1998-05-21 | 2001-12-25 | Mitsubishi Denki Kabushiki Kaisha | Grade-holding brake system |
| CN101778749A (en) * | 2007-04-19 | 2010-07-14 | 雷诺股份公司 | Hill start assistance method and associated device |
| CN101870288A (en) * | 2010-06-11 | 2010-10-27 | 烟台汽车工程职业学院 | Automobile parking auxiliary braking system |
| CN102128064A (en) * | 2011-03-29 | 2011-07-20 | 刘冬生 | Vehicle engine braking system and control circuit thereof |
| CN203157989U (en) * | 2013-03-25 | 2013-08-28 | 中通客车控股股份有限公司 | Hill starting auxiliary system |
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| Publication number | Publication date |
|---|---|
| CN103171558B (en) | 2016-03-02 |
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Address after: 252000 No.261 Huanghe Road, economic development zone, Liaocheng City, Shandong Province Patentee after: Zhongtong bus Limited by Share Ltd. Address before: 252000 No. 10, Dongchangfu, Liaocheng District, Shandong, Jianshe Road Patentee before: ZHONGTONG BUS HOLDING Co.,Ltd. |
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