CN102345521A - Oil quantity limiting system of automobile - Google Patents
Oil quantity limiting system of automobile Download PDFInfo
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- CN102345521A CN102345521A CN2011102133396A CN201110213339A CN102345521A CN 102345521 A CN102345521 A CN 102345521A CN 2011102133396 A CN2011102133396 A CN 2011102133396A CN 201110213339 A CN201110213339 A CN 201110213339A CN 102345521 A CN102345521 A CN 102345521A
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- ecu
- automobile
- oil
- oil mass
- restriction system
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- Steering Control In Accordance With Driving Conditions (AREA)
Abstract
The invention provides an oil quantity limiting system of an automobile, and belongs to the technical field of automobiles. The system solves the problem that the automobile cannot intelligently control the operation of an oil sprayer in the prior art. The system comprises an automotive electronic control unit (ECU) and an oil sprayer connected with the automotive ECU; the automotive ECU is connected to a controller area network (CAN) bus; the oil quantity limiting system also comprises a pressure sensor for measuring the axial pressing force F of a steering wheel; the pressure sensor is connected with the automotive ECU; and the automotive ECU can be used for comparing an automotive actual parameter signal transmitted by the CAN bus and the axial pressing force F of the steering wheel from the pressure sensor with set values in the ECU and transmitting a control signal to control whether the oil sprayer works. The system can intelligently control opening and closing of the oil sprayer, prevent unintended acceleration of the automobile and ensure driving safety, and is simple and reliable in design.
Description
Technical field
The invention belongs to automobile technical field, particularly relate to a kind of oil mass restriction system of automobile.
Background technique
Automobile is a kind of traffic tool very easily, and it has become people's means of transportation widely, and increasing family, individual have had automobile.When driving, new hand driver often occurs the mistake of gas pedal and braking pedal is stepped on operation easily, and is accidents caused easily.For fear of the generation of above-mentioned incident, the someone has designed a kind of vehicle steering wheel that can control throttle.
The notification number of authorizing like State Intellectual Property Office of the People's Republic of China is the patent of invention of CN201254101Y: a kind of vehicle steering wheel; Form by high oil mass hand push button, steering wheel disk, low fuel-flow control spring, low oil mass hand push button, low fuel-flow control contact disk, low oil mass lead, low oil mass throttle control, high oil mass throttle control, high oil mass lead, high fuel-flow control spring, square plate disk connecting rod, high fuel-flow control contact disk; High oil mass hand push button and low oil mass hand push button are left in steering wheel disk connecting rod limit on the steering wheel disk; Above-mentioned hand push button connects corresponding control spring and control contact disk; Above-mentioned control contact disk connects corresponding lead to be connected through the closed circuit circuit that reaches in the throttle control of the throttle control formation lead of correspondence, makes oil pump work.
Though above-mentioned scheme has avoided reason foot control system throttle to cause the generation of the phenomenon of mis-accelerator pressing; But still have following problem: when automobile need brake, driver's nervous system was often relatively more excited, and the driver is nervous easily under this state; Therefore; The driver can not well judge the definite position of high oil mass hand push button and low oil mass hand push button, causes pushing the wrong button, does not reach the such scheme expected effect.
Summary of the invention
The objective of the invention is to be directed against existing in prior technology the problems referred to above, and the oil mass restriction system of a kind of automobile that proposes, this system can gather the actual parameter signal of automobile and judge the state and the oil mass demand of automobile automatically, and whether controls oil sprayer work.
The object of the invention can be realized through following technical proposal: a kind of oil mass restriction system of automobile; Comprise automobile ECU and the oil sprayer that is connected with automobile ECU; Described automobile ECU is connected on the CAN bus; It is characterized in that; This oil mass restriction system also comprises the pressure transducer that is used for the axial pressing force F of direction of measurement dish, and this pressure transducer is connected with above-mentioned automobile ECU, and the setting value of steering wheel shaft in pressing force F and ECU that automobile actual parameter signal that described automobile ECU can transport the CAN bus and pressure transducer transport relatively and whether carry the work of control signal control oil sprayer.
In the moment that the driver touches on the brake, because effect of inertia, the driver can apply an axial pressing force F to steering wheel; The load cell that is arranged on the steering wheel is gathered this pressing force F; And sending to ECU, ECU compares automobile actual parameter signal that transports on this pressing force F and the CAN bus and the setting value that is preset among the ECU, when comparative result satisfies certain condition; ECU control oil sprayer cuts out, and stops oil spout.
In the oil mass restriction system of above-mentioned automobile, described load cell is a piezoelectric transducer.Piezoelectric transducer can be gathered pressure signal and convert electrical signal to and send to ECU.
In the oil mass restriction system of above-mentioned automobile, also be serially connected with bandwidth-limited circuit between described automobile ECU and the described load cell.Adopt the method for serial connection bandwidth-limited circuit can reduce noise jamming, because of factor such as jolt causes noise jamming, and then cause ECU to control oil sprayer stopping the security risk that oil spout brings when preventing that automobile from going under rugged environment.
In the oil mass restriction system of above-mentioned automobile, described CAN bus comprises the vertical actual acceleration A1 of vehicle body, the vertical actual acceleration A2 of vehicle body and actual vehicle speed V to the automobile actual parameter signal that ECU carries.
In the oil mass restriction system of above-mentioned automobile, a preset pressure set points F1, a speed of a motor vehicle setting value V1, a longitudinal acceleration setting value a1 and a vertical acceleration setting value a2 among the described ECU; When described steering wheel shaft to pressing force F greater than pressure set points F1, actual vehicle speed V greater than speed of a motor vehicle setting value V1, the vertical actual acceleration A1 of vehicle body greater than longitudinal acceleration setting value a1 and vertical actual acceleration A2 during less than vertical acceleration setting value a2; ECU sends signal and gives oil sprayer, and the control oil sprayer is carried out the operation of not oil spout.
In the oil mass restriction system of above-mentioned automobile, described ECU also connect one be used to provide the gas pedal state accelerator pedal position sensor.Accelerator pedal position sensor can confirm whether gas pedal is in the acceleration need state through gathering the change in location of gas pedal.
In the oil mass restriction system of above-mentioned automobile, described ECU is in when quickening need state less than pressure set points F1 and gas pedal to pressing force F receiving steering wheel shaft, and ECU control oil sprayer is carried out operated fuel injection after carrying out the operation of not oil spout again.
Compared with prior art; The advantage of the oil mass restriction system of this automobile be can be when gathering brake the driver because of inertia the axial pressing force F that steering wheel applied and the various actual parameters of automobile are handled the judgement vehicle condition; And the open and close of control oil sprayer; To prevent the unwillingly property acceleration of automobile, guarantee traffic safety, and this simplicity of design is reliable.
Description of drawings
Fig. 1 is the structure principle chart of the oil mass restriction system of this automobile.
Fig. 2 is the working principle flow chart of the oil mass restriction system of this automobile when closing oil sprayer.
Fig. 3 is the working principle flow chart of the oil mass restriction system of this automobile when opening oil sprayer again.
Embodiment
Below be specific embodiment of the present invention and combine accompanying drawing, technological scheme of the present invention is done further to describe, but the present invention is not limited to these embodiments.
Like Fig. 1, Fig. 2 and shown in Figure 3, a kind of oil mass restriction system of automobile is controlled the switching of oil sprayer through the ECU of automobile; Comprise the load cell of being located on the steering wheel; Load cell in the present embodiment is a piezoelectric transducer, is connected the input end of bandwidth-limited circuit, and the output terminal of bandwidth-limited circuit connects the signal input part of ECU; The signal output part of ECU is connected on the oil sprayer, and the signal input part of above-mentioned ECU also joins with CAN bus and accelerator pedal position sensor.The CAN bus is used to provide longitudinal acceleration A1 and the vertical acceleration A2 and the actual vehicle speed V of automotive body; Accelerator pedal position sensor is used to provide gas pedal whether to be in the acceleration need state, and when gas pedal was not operated, gas pedal was in non-acceleration need state, otherwise, then be in the acceleration need state.Piezoelectric transducer is used to measure the driver and puts on the axial pressing force F on the steering wheel, and this axial pressing force F is transferred to ECU through electrical signal.In ECU, be preset with a pressure set points F1, a vehicle body longitudinal acceleration value a1, a speed of a motor vehicle vertical acceleration value a2 and a vehicle speed value V1 (like V1=30km/h).
In vehicle traveling process; Piezoelectric transducer on the steering wheel is gathered the driver in real time and is applied to the axial pressing force F on the steering wheel; After bandwidth-limited circuit filtering noise jamming, send to ECU, ECU receives longitudinal acceleration A1, vertical acceleration A2 and the actual vehicle speed V from the automotive body of CAN bus simultaneously.At this moment, ECU compares the Various types of data that receives with corresponding setting value in being pre-stored in ECU as follows:
(1), whether the axial pressing force F of the actual steering wheel of automobile is greater than pressure set points F1;
(2), whether vehicle body longitudinal acceleration A1 is greater than setting value a1;
(3), whether vehicle body vertical acceleration A2 is less than setting value a2;
(4), whether automobile actual vehicle speed V is greater than setting value V1.
If above-mentioned four conditions are " being ", then ECU judges that automobile need carry out Emergency braking, and controls the operation that oil sprayer is carried out not oil spout, thereby reduces engine speed, prevents the unwillingly property acceleration of automobile; If there is any condition to be " denying " in above-mentioned four conditions, then ECU gets back to original state, carries out reception, comparison and the judgement of next group data, oil sprayer proper functioning in this process.
After the braking automobile action is accomplished, need to carry out again when quickening, ECU need judge earlier as follows:
(1), whether the axial pressing force F of the actual steering wheel of automobile is less than setting value F1;
(2), whether gas pedal steps on (promptly whether be in and quicken need state).
When if above-mentioned condition is " being ", ECU control oil sprayer is carried out operated fuel injection, and automobile quickens again; If there is any one to be " denying " in the above-mentioned condition, then ECU control oil sprayer continues to carry out not operated fuel injection, and automobile still is in braking state.
Specific embodiment described herein only is that the present invention's spirit is illustrated.Person of ordinary skill in the field of the present invention can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present invention or surmount the defined scope of appended claims.
Claims (7)
1. the oil mass restriction system of an automobile; Comprise automobile ECU and the oil sprayer that is connected with automobile ECU; Described automobile ECU is connected on the CAN bus; It is characterized in that; This oil mass restriction system also comprises the pressure transducer that is used for the axial pressing force F of direction of measurement dish, and this pressure transducer is connected with above-mentioned automobile ECU, and the setting value of steering wheel shaft in pressing force F and ECU that automobile actual parameter signal that described automobile ECU can transport the CAN bus and pressure transducer transport relatively and whether carry the work of control signal control oil sprayer.
2. the oil mass restriction system of automobile according to claim 1 is characterized in that, described load cell is a piezoelectric transducer.
3. the oil mass restriction system of automobile according to claim 1 and 2 is characterized in that, also is serially connected with bandwidth-limited circuit between described automobile ECU and the described load cell.
4. the oil mass restriction system of automobile according to claim 1 and 2 is characterized in that, described CAN bus comprises the vertical actual acceleration A1 of vehicle body, the vertical actual acceleration A2 of vehicle body and actual vehicle speed V to the automobile actual parameter signal that ECU carries.
5. the oil mass restriction system of automobile according to claim 1 and 2 is characterized in that, a preset pressure set points F1, a speed of a motor vehicle setting value V1, a longitudinal acceleration setting value a1 and a vertical acceleration setting value a2 among the described ECU; When described steering wheel shaft to pressing force F greater than pressure set points F1, actual vehicle speed V greater than speed of a motor vehicle setting value V1, the vertical actual acceleration A1 of vehicle body greater than longitudinal acceleration setting value a1 and vertical actual acceleration A2 during less than vertical acceleration setting value a2; ECU sends signal and gives oil sprayer, and the control oil sprayer is carried out the operation of not oil spout.
6. the oil mass restriction system of automobile according to claim 1 and 2 is characterized in that, described ECU also connect one be used to provide the gas pedal state accelerator pedal position sensor.
7. the oil mass restriction system of automobile according to claim 1 and 2; It is characterized in that; Described ECU is in when quickening need state less than pressure set points F1 and gas pedal to pressing force F receiving steering wheel shaft, and ECU control oil sprayer is carried out operated fuel injection after carrying out the operation of not oil spout again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110213339.6A CN102345521B (en) | 2011-07-28 | 2011-07-28 | Oil quantity limiting system of automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110213339.6A CN102345521B (en) | 2011-07-28 | 2011-07-28 | Oil quantity limiting system of automobile |
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| Publication Number | Publication Date |
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| CN102345521A true CN102345521A (en) | 2012-02-08 |
| CN102345521B CN102345521B (en) | 2014-04-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110213339.6A Active CN102345521B (en) | 2011-07-28 | 2011-07-28 | Oil quantity limiting system of automobile |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4200642A1 (en) * | 1992-01-13 | 1993-07-15 | Sandor Nagy | Vehicular driver vigilance alarm coupled to steering wheel - incorporates two timed circuits for successive alerting of inattentive driver and of others at risk. |
| US5874892A (en) * | 1998-01-23 | 1999-02-23 | Antonellis; Domenico | Vehicle warning system |
| DE19753160C1 (en) * | 1997-11-29 | 1999-04-15 | Bosch Gmbh Robert | Arrangement for detecting an impending accident situation for a motor vehicle |
| JP2001247022A (en) * | 2000-03-03 | 2001-09-11 | Mitsuo Tomizuka | Braking device interlocking with steering wheel of vehicle |
| KR20050066160A (en) * | 2003-12-26 | 2005-06-30 | 현대자동차주식회사 | Apparatus for controlling fuel injection of engine in automobile and method of the same |
| JP2005219611A (en) * | 2004-02-05 | 2005-08-18 | Fujitsu Ten Ltd | Drive assisting device |
| CN1907750A (en) * | 2005-08-05 | 2007-02-07 | 日产自动车株式会社 | Vehicle driving assist system and method |
-
2011
- 2011-07-28 CN CN201110213339.6A patent/CN102345521B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4200642A1 (en) * | 1992-01-13 | 1993-07-15 | Sandor Nagy | Vehicular driver vigilance alarm coupled to steering wheel - incorporates two timed circuits for successive alerting of inattentive driver and of others at risk. |
| DE19753160C1 (en) * | 1997-11-29 | 1999-04-15 | Bosch Gmbh Robert | Arrangement for detecting an impending accident situation for a motor vehicle |
| US5874892A (en) * | 1998-01-23 | 1999-02-23 | Antonellis; Domenico | Vehicle warning system |
| JP2001247022A (en) * | 2000-03-03 | 2001-09-11 | Mitsuo Tomizuka | Braking device interlocking with steering wheel of vehicle |
| KR20050066160A (en) * | 2003-12-26 | 2005-06-30 | 현대자동차주식회사 | Apparatus for controlling fuel injection of engine in automobile and method of the same |
| JP2005219611A (en) * | 2004-02-05 | 2005-08-18 | Fujitsu Ten Ltd | Drive assisting device |
| CN1907750A (en) * | 2005-08-05 | 2007-02-07 | 日产自动车株式会社 | Vehicle driving assist system and method |
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| Publication number | Publication date |
|---|---|
| CN102345521B (en) | 2014-04-16 |
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