CN102852655A - Electronic accelerator for fuel engine - Google Patents
Electronic accelerator for fuel engine Download PDFInfo
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- CN102852655A CN102852655A CN2011103143893A CN201110314389A CN102852655A CN 102852655 A CN102852655 A CN 102852655A CN 2011103143893 A CN2011103143893 A CN 2011103143893A CN 201110314389 A CN201110314389 A CN 201110314389A CN 102852655 A CN102852655 A CN 102852655A
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- air throttle
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- gas pedal
- throttle
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- Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
- Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
Abstract
An electronic accelerator for a fuel engine consists of an accelerator pedal (1), a control system (2), an accelerator execution component (3) and a transmission cable (4); the control system (2) consists of an ECT (Emission Computed Tomography) control panel (201), a speed sensor (202), a navigation control module (203) and a power supply (204); and the accelerator execution component (3) consists of an air throttle valve opening sensor (301), an air throttle valve (302), an air throttle valve shaft (303), a driving gear (304), a stepping motor (305), a cable socket (306) and an air throttle valve housing (307). The electronic accelerator can realize automatic driving, save fuel oil, greatly improve the performances of the finished vehicle and reduce emission pollution, thus better meeting the environment-friendly requirement.
Description
Technical field
The present invention relates to a kind of electronic accelerator for fuel oil engine.
Background technique
In the prior art, electronic accelerator for fuel oil engine is used for the flow that the control node valve opening can be controlled inflammable mixture, changes whereby the rotating speed of motor and power to adapt to the needs of automobile running.E-Gas normally connects accelerator pedal and closure interlock plate by steel wire or pull bar, usually lacks accuracy in its application process.Conventional E-Gas also has employing electromagnet or electric Proportion valve control, and is so not accurate enough but its control action is appointed.
People urgently wish to obtain the better electronic accelerator for fuel oil engine of a kind of technique effect.
Summary of the invention
The purpose of this invention is to provide the better electronic accelerator for fuel oil engine of a kind of technique effect.It at first carries out corresponding action according to driver's signal for faster, and carries out real-time information exchange with motor, gearbox, in order to according to actual needs the air throttle opening angle is remained on the optimum state, and the impact during the control speed change.
A kind of electronic accelerator for fuel oil engine of the present invention is comprised of gas pedal 1, control system 2, throttle power unit 3 and transmission cable 4; Wherein: gas pedal 1 is connected with control system 2 by transmission cable 4, throttle power unit 3 is connected with control system 2 by transmission cable 4, the signal of gas pedal 1 is after control system 2 is processed, transmit control signal to throttle power unit 3, the size of control air throttle aperture realizes the control of rotating speed of automobile engine; It is characterized in that:
Described control system 2 is comprised of ECT control panel 201, velocity transducer 202, cruise control module 203, power supply 204; Wherein: velocity transducer 202, cruise control module 203, power supply 204 are connected with ECT control panel 201 by transmission cable 4;
Described throttle power unit 3 is comprised of air throttle jaw opening sensor 301, choke valve 302, air throttle door-hinge 303, driving gear 304, stepper motor 305, cable socket 306, air throttle shell 307; Wherein: air throttle jaw opening sensor 301 is fixed on the inwall of air throttle shell 307, choke valve 302 is connected on the air throttle door-hinge 303, air throttle door-hinge 303 is installed on the air throttle shell 307, stepper motor 305 is installed on the air throttle shell 307 by screw, on the axle of stepper motor 305 gear is housed, and is meshed with the gear installed on the air throttle door-hinge 303.
Described gas pedal 1 is comprised of gas pedal 101, angular displacement sensor 102, gas pedal shell; Wherein: gas pedal 101 is connected with the gas pedal shell by revolute pair, and angular displacement sensor 102 is installed in the gas pedal shell.
The main control chip of described control system 2 is the MM908E624 chip; A/D conversion chip MM901E204 chip or AD574 chip in the ECT control panel 201; Time base circuit in the described control system 2 adopts the NE555 chip; Amplifier in the described control system 2 adopts the LF357 chip.
Control system is mainly by throttle shift sensor DCU(ECU (Electrical Control Unit)), data/address bus, step servomotor and throttle execution mechanism form.The MM908E624 single-chip microcomputer mainly designs for automobile and industrial control.
The present invention has cancelled drag-line or pull bar, at closure a micro-stepping motor is installed and is used for driving throttle opening.Specifically by foot-operated throttle position sensor the accelerator open degree signal of needs is delivered to main control chip MM908E624, then obtains corresponding output instruction signal through the moment of torsion that obtains and rotary speed data analysis and regulate oil gas door aperture in order to drive stepping motor.High performance HC08 single-chip microcomputer (MCU) nuclear and SmartMOS IC chip consist of, and have the characteristics such as level of integration is high, price is low.
In actual applications displacement transducer is installed on the steering wheel, can sets the aperture (corresponding target vehicle speed) of throttle, the physical location of accelerator open degree sensor monitoring accelerator open degree is installed at the motor of throttle simultaneously.When data scanning changes to the analog input of displacement transducer is different from the input of accelerator open degree sensor, understand moment with this direct information MM908E624, this chip is analyzed information, when the analog input amount of displacement transducer during greater than the feedback quantity of accelerator open degree sensor, drive the motor forward (oil inlet quantity increase, and accelerate) of E-Gas.Otherwise input quantity is then opposite less than feedback quantity.By the control of above method realization to throttle, thereby keep stable output and high combustion efficiency to reduce energy consumption.
In addition, the electronic accelerator for fuel oil engine system adjusts closure by DCU, therefore Security and the travelling comfort that various functions are improved driving can be set, wherein the modal ASR(of being exactly traction control system) and speed control system (control of cruising).E-Gas is when the rotational speed of ASR system sensing to wheel, the ECU(EGAS control unit) just obtains sliding ratio according to the difference between position, wheel velocity and the wheel steering angle etc. of gas pedal, adjust mixed gas flow by reducing throttle opening, reach the control purpose to reduce engine power.And in the ASR system, E-Gas plays very crucial effect, and it relates in the whole ASR system functions such as speed of a motor vehicle control, idle speed control, makes system can carry out quickly and accurately instruction.Namely when the E-Gas system received the ASR system command, it only came from ASR to the throttle control instruction, so just can avoid motorist's misoperation.When motorist's operating speed control system, vehicle speed sensor is inputted the ECU(EGAS control unit with vehicle speed signal), again by the ECU(EGAS control unit) output order servomotor control throttle opening.In such system, automatically regulate the engine air throttle aperture according to the variation of running resistance by control system, make speed of operation keep stable.Therefore system is with the compatibility control function of cruising.
Electric circuit diagram design, utilize single-chip microcomputer MM908E624 its with HC08 single-chip microcomputer nuclear substantially all be the same, all comprise flash storage on the sheet of 16K byte, the RAM of 512 bytes, the timer of two 16 2 passages, enhancement mode serial communication interface (ESCI), the analog-digital converter of 10 or 12 precision (A/D), Serial Peripheral Interface (SPI) (SPI) and 16 controller general I/O mouths.Wherein, the SmartMOS intergrated circuit of MM908E624 inside mainly is the high-end delivery outlet by three, LIN EBI, voltage adjuster and operational amplifier interface and wake the formation such as interface up.MM908E624 has three high-end delivery outlets: the wherein high-end output interface HS1 of the first two and HS2, with overcurrent and overheat protector function, the maximum current output scope is 200mA～500mA, can be used for drive motor.In the situation that drive inductive load, the voltage of output can be limited also with cladding circuit in the inside of these two delivery outlets.By the SPI Interface realization, can also pass through the PWMIN port to the control of these two delivery outlets in addition, realize PWM control function.When using the PWM function, the circuit that chip internal drives high-end output interface can carry out logic and operation to the level of the HS1ON position of SPI register (or HS2ON position) and PWMIN input pin, then according to the state of the high-end delivery outlet of output control.
MM908E624 provides a LIN bus port LIN with a LIN physical layer, and this port is monobus transmitting-receiving, can with three line LIN bus compatibles.LIN (Local Interconnect Network) is a kind of cheaply serial communication network, based on SCI (UART) data format, adopt single master controller/how from the patterns of equipment, be mainly used in realizing the distributed electronic system control in the automobile.With CAN(Control Area Network) to compare, the design of LIN is cheap and simple more.In a lot of occasions of using, substitute the cost that CAN can significantly reduce product with LIN.MM908E624 is with a voltage adjuster output interface.Under normal mode and STOP pattern, this voltage adjuster can be exported a 5V voltage, thereby can power to single-chip microcomputer.But it should be noted that this port needs an external electric capacity to come the output of burning voltage.In addition, this voltage adjuster also has current-limiting function, is mainly used under the STOP pattern.
The main control chip part, MM908E624 carries out computing and analysis to the signal of external sense circuit, judges whether HS1, the output of HS2 port, thus drive throttle motor, and PTA3, PTA4 are passed through in alarm signal output.Be connected timely feedback information with master controller by the LIN bus simultaneously.
The RESET part by this reset key L1, is in time waken chip up and is carried out throttle motor reverse brake buffering.Power supply unit, 12V is adopted in power supply, and chip adopts the bus-powered 5V of LIN, and motor partly adopts the 5V Power supply.
Advantage of the present invention: after can realizing given target vehicle speed, automobile can not need driver's pin to remove control, i.e. automatic Pilot aspect speed; Possess intelligent judgment function, accelerator open degree is diminished greatly.Can fuel-efficient fuel-economizing, and be conducive to the fresh driver and drive the dangerous driving of avoiding halfway flame-out; Electronic accelerator for fuel oil engine is carried out driver's signal for faster at first, and carries out information exchange with motor, gearbox computer uninterruptedly, the air throttle opening angle is remained on the optimum state, the impact in the time of can reducing speed change; Electric injection system adopts E-Gas and torque structure control principle, so that motor is in optimum state constantly, has greatly improved vehicle performance, has improved driving comfortability, has reduced oil consumption, has reduced exhaust emission; Satisfy better environmental requirement.
Description of drawings
The present invention is further detailed explanation below in conjunction with drawings and the embodiments:
Fig. 1 is electronic accelerator for fuel oil engine principle of compositionality schematic diagram;
Fig. 2 is the circuit theory sketch of electronic accelerator for fuel oil engine.
Embodiment
Embodiment 1
A kind of electronic accelerator for fuel oil engine, referring to accompanying drawing 1,2, it is comprised of gas pedal 1, control system 2, throttle power unit 3 and transmission cable 4; Wherein: gas pedal 1 is connected with control system 2 by transmission cable 4, throttle power unit 3 is connected with control system 2 by transmission cable 4, the signal of gas pedal 1 is after control system 2 is processed, transmit control signal to throttle power unit 3, the size of control air throttle aperture realizes the control of rotating speed of automobile engine;
Described control system 2 is comprised of ECT control panel 201, velocity transducer 202, cruise control module 203, power supply 204; Wherein: velocity transducer 202, cruise control module 203, power supply 204 are connected with ECT control panel 201 by transmission cable 4;
Described throttle power unit 3 is comprised of air throttle jaw opening sensor 301, choke valve 302, air throttle door-hinge 303, driving gear 304, stepper motor 305, cable socket 306, air throttle shell 307; Wherein: air throttle jaw opening sensor 301 is fixed on the inwall of air throttle shell 307, choke valve 302 is connected on the air throttle door-hinge 303, air throttle door-hinge 303 is installed on the air throttle shell 307, stepper motor 305 is installed on the air throttle shell 307 by screw, on the axle of stepper motor 305 gear is housed, and is meshed with the gear installed on the air throttle door-hinge 303.
Described gas pedal 1 is comprised of gas pedal 101, angular displacement sensor 102, gas pedal shell; Wherein: gas pedal 101 is connected with the gas pedal shell by revolute pair, and angular displacement sensor 102 is installed in the gas pedal shell.
The main control chip of described control system 2 is the MM908E624 chip; A/D conversion chip MM901E204 chip or AD574 chip in the ECT control panel 201; Time base circuit in the described control system 2 adopts the NE555 chip; Amplifier in the described control system 2 adopts the LF357 chip.Control system is mainly by throttle shift sensor DCU(ECU (Electrical Control Unit)), data/address bus, step servomotor and throttle execution mechanism form.The MM908E624 single-chip microcomputer mainly designs for automobile and industrial control.
The present embodiment has been cancelled drag-line or pull bar, at closure a micro-stepping motor is installed and is used for driving throttle opening.Specifically by foot-operated throttle position sensor the accelerator open degree signal of needs is delivered to main control chip MM908E624, then obtains corresponding output instruction signal through the moment of torsion that obtains and rotary speed data analysis and regulate oil gas door aperture in order to drive stepping motor.High performance HC08 single-chip microcomputer (MCU) nuclear and SmartMOS IC chip consist of, and have the characteristics such as level of integration is high, price is low.
In actual applications displacement transducer is installed on the steering wheel, can sets the aperture (corresponding target vehicle speed) of throttle, the physical location of accelerator open degree sensor monitoring accelerator open degree is installed at the motor of throttle simultaneously.When data scanning changes to the analog input of displacement transducer is different from the input of accelerator open degree sensor, understand moment with this direct information MM908E624, this chip is analyzed information, when the analog input amount of displacement transducer during greater than the feedback quantity of accelerator open degree sensor, drive the motor forward (oil inlet quantity increase, and accelerate) of E-Gas.Otherwise input quantity is then opposite less than feedback quantity.By the control of above method realization to throttle, thereby keep stable output and high combustion efficiency to reduce energy consumption.
In addition, the electronic accelerator for fuel oil engine system adjusts closure by DCU, therefore Security and the travelling comfort that various functions are improved driving can be set, wherein the modal ASR(of being exactly traction control system) and speed control system (control of cruising).E-Gas is when the rotational speed of ASR system sensing to wheel, the ECU(EGAS control unit) just obtains sliding ratio according to the difference between position, wheel velocity and the wheel steering angle etc. of gas pedal, adjust mixed gas flow by reducing throttle opening, reach the control purpose to reduce engine power.And in the ASR system, E-Gas plays very crucial effect, and it relates in the whole ASR system functions such as speed of a motor vehicle control, idle speed control, makes system can carry out quickly and accurately instruction.Namely when the E-Gas system received the ASR system command, it only came from ASR to the throttle control instruction, so just can avoid motorist's misoperation.When motorist's operating speed control system, vehicle speed sensor is inputted the ECU(EGAS control unit with vehicle speed signal), again by the ECU(EGAS control unit) output order servomotor control throttle opening.In such system, automatically regulate the engine air throttle aperture according to the variation of running resistance by control system, make speed of operation keep stable.Therefore system is with the compatibility control function of cruising.
Electric circuit diagram design, utilize single-chip microcomputer MM908E624 its with HC08 single-chip microcomputer nuclear substantially all be the same, all comprise flash storage on the sheet of 16K byte, the RAM of 512 bytes, the timer of two 16 2 passages, enhancement mode serial communication interface (ESCI), the analog-digital converter of 10 or 12 precision (A/D), Serial Peripheral Interface (SPI) (SPI) and 16 controller general I/O mouths.Wherein, the SmartMOS intergrated circuit of MM908E624 inside mainly is the high-end delivery outlet by three, LIN EBI, voltage adjuster and operational amplifier interface and wake the formation such as interface up.MM908E624 has three high-end delivery outlets: the wherein high-end output interface HS1 of the first two and HS2, with overcurrent and overheat protector function, the maximum current output scope is 200mA～500mA, can be used for drive motor.In the situation that drive inductive load, the voltage of output can be limited also with cladding circuit in the inside of these two delivery outlets.By the SPI Interface realization, can also pass through the PWMIN port to the control of these two delivery outlets in addition, realize PWM control function.When using the PWM function, the circuit that chip internal drives high-end output interface can carry out logic and operation to the level of the HS1ON position of SPI register (or HS2ON position) and PWMIN input pin, then according to the state of the high-end delivery outlet of output control.
MM908E624 provides a LIN bus port LIN with a LIN physical layer, and this port is monobus transmitting-receiving, can with three line LIN bus compatibles.LIN (Local Interconnect Network) is a kind of cheaply serial communication network, based on SCI (UART) data format, adopt single master controller/how from the patterns of equipment, be mainly used in realizing the distributed electronic system control in the automobile.With CAN(Control Area Network) to compare, the design of LIN is cheap and simple more.In a lot of occasions of using, substitute the cost that CAN can significantly reduce product with LIN.MM908E624 is with a voltage adjuster output interface.Under normal mode and STOP pattern, this voltage adjuster can be exported a 5V voltage, thereby can power to single-chip microcomputer.But it should be noted that this port needs an external electric capacity to come the output of burning voltage.In addition, this voltage adjuster also has current-limiting function, is mainly used under the STOP pattern.
The main control chip part, MM908E624 carries out computing and analysis to the signal of external sense circuit, judges whether HS1, the output of HS2 port, thus drive throttle motor, and PTA3, PTA4 are passed through in alarm signal output.Be connected timely feedback information with master controller by the LIN bus simultaneously.
The RESET part by this reset key L1, is in time waken chip up and is carried out throttle motor reverse brake buffering.Power supply unit, 12V is adopted in power supply, and chip adopts the bus-powered 5V of LIN, and motor partly adopts the 5V Power supply.
After the present embodiment can be realized given target vehicle speed, automobile can not need driver's pin to remove control, i.e. automatic Pilot aspect speed; Possess intelligent judgment function, accelerator open degree is diminished greatly.Can fuel-efficient fuel-economizing, and be conducive to the fresh driver and drive the dangerous driving of avoiding halfway flame-out; Electronic accelerator for fuel oil engine is carried out driver's signal for faster at first, and carries out information exchange with motor, gearbox computer uninterruptedly, the air throttle opening angle is remained on the optimum state, the impact in the time of can reducing speed change; Electric injection system adopts E-Gas and torque structure control principle, so that motor is in optimum state constantly, has greatly improved vehicle performance, has improved driving comfortability, has reduced oil consumption, has reduced exhaust emission; Satisfy better environmental requirement.
Claims (3)
1. an electronic accelerator for fuel oil engine is comprised of gas pedal (1), control system (2), throttle power unit (3) and transmission cable (4); Wherein: gas pedal (1) is connected with control system (2) by transmission cable (4), and throttle power unit (3) is connected with control system (2) by transmission cable (4); It is characterized in that:
Described control system (2) is comprised of ECT control panel (201), velocity transducer (202), cruise control module (203), power supply (204); Wherein: velocity transducer (202), cruise control module (203), power supply (204) are connected with ECT control panel (201) by transmission cable (4);
Described throttle power unit (3) is comprised of air throttle jaw opening sensor (301), choke valve (302), air throttle door-hinge (303), driving gear (304), stepper motor (305), cable socket (306), air throttle shell (307); Wherein: air throttle jaw opening sensor (301) is fixed on the inwall of air throttle shell (307), choke valve (302) is connected on the air throttle door-hinge (303), air throttle door-hinge (303) is installed on the air throttle shell (307), stepper motor (305) is installed on the air throttle shell (307) by screw, on the axle of stepper motor (305) gear is housed, and is meshed with the upper gear of installing of air throttle door-hinge (303).
2. according to the described electronic accelerator for fuel oil engine of claim 1, it is characterized in that: described gas pedal (1) is comprised of gas pedal (101), angular displacement sensor (102), gas pedal shell; Wherein: gas pedal (101) is connected with the gas pedal shell by revolute pair, and angular displacement sensor (102) is installed in the gas pedal shell.
3. according to the described electronic accelerator for fuel oil engine of claim 2, it is characterized in that: the main control chip of described control system (2) is the MM908E624 chip; A/D conversion chip MM901E204 chip or AD574 chip in the ECT control panel (201); Time base circuit in the described control system (2) adopts the NE555 chip; Amplifier in the described control system (2) adopts the LF357 chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103143893A CN102852655A (en) | 2011-10-17 | 2011-10-17 | Electronic accelerator for fuel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103143893A CN102852655A (en) | 2011-10-17 | 2011-10-17 | Electronic accelerator for fuel engine |
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| Publication Number | Publication Date |
|---|---|
| CN102852655A true CN102852655A (en) | 2013-01-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011103143893A Pending CN102852655A (en) | 2011-10-17 | 2011-10-17 | Electronic accelerator for fuel engine |
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| Country | Link |
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| CN (1) | CN102852655A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109263471A (en) * | 2018-11-01 | 2019-01-25 | 四川工商学院 | A kind of automotive throttle automatic control system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1580521A (en) * | 2003-08-01 | 2005-02-16 | 株式会社电装 | Throttle control apparatus having plate-shaped inner connecting member |
| CN1761807A (en) * | 2003-04-09 | 2006-04-19 | 丰田自动车株式会社 | Be used for the closure control of noise-decreasing in the internal-combustion engine |
| US20060266330A1 (en) * | 2005-05-27 | 2006-11-30 | Honda Motor Co., Ltd. | Electrically-actuated throttle device for general-purpose engine |
| CN200952428Y (en) * | 2006-05-10 | 2007-09-26 | 陈文英 | Vehicle electronic air throttle system |
-
2011
- 2011-10-17 CN CN2011103143893A patent/CN102852655A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1761807A (en) * | 2003-04-09 | 2006-04-19 | 丰田自动车株式会社 | Be used for the closure control of noise-decreasing in the internal-combustion engine |
| CN1580521A (en) * | 2003-08-01 | 2005-02-16 | 株式会社电装 | Throttle control apparatus having plate-shaped inner connecting member |
| US20060266330A1 (en) * | 2005-05-27 | 2006-11-30 | Honda Motor Co., Ltd. | Electrically-actuated throttle device for general-purpose engine |
| CN200952428Y (en) * | 2006-05-10 | 2007-09-26 | 陈文英 | Vehicle electronic air throttle system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109263471A (en) * | 2018-11-01 | 2019-01-25 | 四川工商学院 | A kind of automotive throttle automatic control system |
| CN109263471B (en) * | 2018-11-01 | 2024-05-07 | 四川工商学院 | Automatic control system for automobile accelerator |
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Application publication date: 20130102 |