CN2665380Y - Engine electronic throttle control apparatus - Google Patents
Engine electronic throttle control apparatus Download PDFInfo
- Publication number
- CN2665380Y CN2665380Y CN 03249070 CN03249070U CN2665380Y CN 2665380 Y CN2665380 Y CN 2665380Y CN 03249070 CN03249070 CN 03249070 CN 03249070 U CN03249070 U CN 03249070U CN 2665380 Y CN2665380 Y CN 2665380Y
- Authority
- CN
- China
- Prior art keywords
- electronic throttle
- air damper
- motor
- microprocessor
- throttle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000012545 processing Methods 0.000 claims description 6
- 238000013461 design Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000009347 mechanical transmission Effects 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Images
Landscapes
- Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
Abstract
A motor electronic air damper controller which relates to the automobile air damper field of design technique is characterized in that two PWM signal output terminals in a microprocessor are directly connected with two input terminals in a drive circuit; the two output signals are designed like that when one is the needed duty factor, the other is zero. The two coordinated PWM signals produced by the electronic air damper in the utility model can allow the air damper motor to output positive torque, negative torque or work in a free state without outputting torque according to control demands, avoiding highly frequent drawing the air damper flap back and forth, so that the conditions that the electronic air damper motor is easy to be overheated with big noise when in running and the position of the air damper flap slightly dithers in a high frequency can be avoided.
Description
Technical field
A kind of electronic throttle of engine control gear relates to motor car engine closure design field.
Background technique
Electronic throttle of engine is with a cover sensor, final controlling element, substituted the mechanical transmission mechanism between the accelerator pedal and engine air throttle on the orthodox car, electronic air throttle control device is used to control the electronic throttle aperture, the system that they are formed can require to regulate engine throttle position according to driver intention and power system control, change Engine torque output, dynamically adjust the transfer function of accelerator pedal according to different working conditions change to closure, effectively reduce oil consumption and discharging, optimize cornering ability.
As shown in Figure 1 be a kind of schematic block circuit diagram of known electronic air throttle control device, microprocessor receives the target aperture signal that upper-position unit sends, the feedback signal that transmits by feedback signal processing circuit with aperture position transducer on the electronic throttle, carry out producing one road pwm signal after the computing, this signal is converted into two-way anti-phase pwm signal PWM1 and PWM2 by auxiliary cicuits such as not gates, their input driving circuits, the output of drive circuit are used to drive the drive signal ETCM+ and the ETCM-of electronic throttle motor.Microprocessor can change and flow through size of current or direction among electronic throttle motor two ends ETCM+ and the ETCM-by regulating the dutycycle of pwm signal, i.e. can regulate motor output torque, and then control throttle opening.Use this technology, when pwm signal was high level, the PWM1 signal of input driving circuit was a high level, and the PWM2 signal is a low level, electronic throttle motor output positive torque; When the PWM1 signal was low level, the PWM1 signal of input driving circuit was a low level, and the PWM2 signal is a high level, electronic throttle motor output reactive torque.So controller (microprocessor) is to be equal to the frequency of pwm signal, high frequency spurs the electronic throttle motor back and forth, with control throttle blade position.Use sort controller, the electronic throttle motor is overheated easily, and noise is big during operation, and makes the throttle blade position that slight high dither takes place easily.For example when the control electronic throttle when treating fast aperture, the throttle blade position is the initial position that need not driving moment, and this moment this controller the pwm signal dutycycle be 50%, motor does not have output torque but electric current is arranged and energy consumption, this energy makes that the motor feels hot and sends big noise.
The model utility content
Big in order to overcome under the existing electronic air throttle control device control electronic throttle running noises, the electronic throttle motor is overheated easily, the deficiency of slight high dither takes place in throttle blade position easily, the utility model provides a kind of electronic air throttle control device that produces the two-way pwm signal, described two-way pwm signal cooperating, can make throttle motor according to control needs output positive torque, negative sense moment of torsion or be operated in the not free state of output torque, avoided the pulling throttle blade back and forth of high frequency, thereby avoided the electronic throttle motor overheated easily, noise is big during operation, and the situation of slight high dither takes place in the throttle blade position.
The utility model contains: be connected to the microprocessor between upper-position unit and the electronic throttle drive motor and the drive circuit of electronic throttle motor in turn, and be connected feedback signal processing circuit between the feedback signal input end of the aperture position transducer of electronic throttle and microprocessor, it is characterized in that, described microprocessor has two pwm signal output terminals directly to link to each other with two input ends of described drive circuit, described two PWM output signals be when one of them during for required output duty cycle, another signal is zero.
The model of described microprocessor is MC68HC912DG128A.The model of described drive circuit is MC33186.Described feedback signal processing circuit is the RC eliminator.
Experimental results show that, the utility model can make throttle motor export positive torque, negative sense moment of torsion or be operated in the not free state of output torque according to the control needs, avoided the pulling throttle blade back and forth of high frequency, thereby avoided the electronic throttle motor overheated easily, noise is big during operation, and the situation of slight high dither takes place in the throttle blade position.
Description of drawings
Fig. 1 represents the electronic air throttle control device schematic block circuit diagram of known technology;
Fig. 2 represents the schematic block circuit diagram of the utility model electronic air throttle control device;
Fig. 3 represents the utility model embodiment's circuit theory diagrams;
Fig. 4 represents the driving principle figure of H bridge in the utility model embodiment's the drive circuit.
Embodiment
Accompanying drawings the specific embodiment of the present invention.
As shown in Figure 2, the utility model schematic block circuit diagram is with the difference of prior art, and microprocessor output two-way pwm signal is respectively PWM1 and PWM2, and this two paths of signals directly outputs to two input ends of drive circuit.Microprocessor by SCI from upper-position unit electron gain closure target aperture, the current aperture of electronic throttle by the feedback signal processing circuit acquisition, the control program and the PWM dutycycle allocator of microprocessor internal sent into this target aperture and current aperture by microprocessor, obtain the dutycycle of the two-way PWM of its output, make the work that cooperatively interacts of two-way pwm signal.The cooperatively interact principle of work of two-way PWM is: the PWM1 dutycycle equals the current dutycycle that control program is determined when electronic throttle needs its motor to produce positive torque, and the PWM2 dutycycle is zero; When electronic throttle needed its motor to produce the negative sense moment of torsion, the PWM1 dutycycle equalled zero, and the PWM2 dutycycle equals the current dutycycle that control algorithm is determined.When that road pwm signal of dutycycle output was low level, throttle motor did not produce moment of torsion like this.So just can avoid throttle motor always to be in the state of high frequency conversion.
See Fig. 3, the utility model embodiment's microprocessor adopts the MC68HC912DG128A microprocessor, its is inner integrated A/D analog-to-digital conversion module, multi-channel PWM passage and SCI communication module.The A/D analog-to-digital conversion module receives the current aperture signal of electronic throttle that is transmitted by the aperture position transducer on the closure, and the multi-channel PWM passage is used to export the two-way pwm signal, and the SCI communication module is by serial port chip MAX232 and upper machine communication.
Present embodiment uses the MC33186 chip as drive circuit, and its inside is integrated with H bridge drive circuit, current-limiting circuit, overvoltage crowbar, overheating protection circuit and chip diagnostic circuit.Input end IN1 and IN2 that two-way pulse-width signal PWM1 that microprocessor produces and PWM2 send into MC33186; The output terminal OUT1 of MC33186 chip is connected the drive end ETCM+ and the ETCM-of electronic throttle motor with OUT2.Electronic throttle is the direct current generator of BOSCH in the present embodiment, and model is DV-E5.Electronic throttle motor (1), throttle blade (2) and throttle opening position transducer (3) all are positioned at electronic air throttle body, the RC eliminator that the output terminal TPS of its throttle opening position transducer (3) constitutes by R1 and C1 is connected the aperture position feed back signal input end of microprocessor, and controller is determined the current aperture of electronic throttle according to this voltage of signals value.Introduce the cooperating mode of two-way pwm signal once more in conjunction with H bridge drive circuit drive circuit works principle, see Fig. 4, the drive end ETCM+ and the ETCM-of electronic throttle motor draw from the electronic throttle pin, link to each other with two output terminals of motor-drive circuit.When the input signal PWM1 of drive circuit equals current dutycycle and PWM2 dutycycle when being zero, PWM2 is always low level, when PWM1 is high level ETCM+ end with+12V connects and the ETCM-end is connected with GND, electric current flows to ETCM-from ETCM+ in the motor coil, the electronic throttle motor provides positive torque, ETCM+ end and ETCM-end are all unsettled when PWM1 is low level, no current in the motor coil, and the electronic throttle motor does not provide moment of torsion.When the PWM1 dutycycle equals zero and PWM2 when being current dutycycle, PWM1 is always low level, ETCM+ end was connected with GND and the ETCM-end is connected with+12V when PWM2 was high level, and electric current flows to ETCM+ from ETCM-in the motor coil, and the electronic throttle motor provides reactive torque; PWM2 be low level then ETCM+ end and ETCM-end are all unsettled, no current in the motor coil, the electronic throttle motor does not provide moment of torsion, the bad runnability that traditional controller high frequency spurs throttle blade back and forth just can not occur.
Claims (4)
1, a kind of electronic throttle of engine control gear, contain the microprocessor that is connected in turn between upper-position unit and the electronic throttle drive motor and the drive circuit of electronic throttle motor, and be connected feedback signal processing circuit between the feedback signal input end of the aperture position transducer of electronic throttle and microprocessor, it is characterized in that, described microprocessor has two pwm signal output terminals directly to link to each other with two input ends of described drive circuit, described two PWM output signals be when one of them during for required output duty cycle, another signal is zero.
2, a kind of electronic throttle of engine control gear as claimed in claim 1 is characterized in that, the model of described microprocessor is MC68HC912DG128A.
3, a kind of electronic throttle of engine control gear as claimed in claim 1 is characterized in that, the model of described drive circuit is MC33186.
4, a kind of electronic throttle of engine control gear as claimed in claim 1 is characterized in that, feedback signal processing circuit is the RC eliminator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03249070 CN2665380Y (en) | 2003-09-26 | 2003-09-26 | Engine electronic throttle control apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03249070 CN2665380Y (en) | 2003-09-26 | 2003-09-26 | Engine electronic throttle control apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2665380Y true CN2665380Y (en) | 2004-12-22 |
Family
ID=34327495
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03249070 Expired - Lifetime CN2665380Y (en) | 2003-09-26 | 2003-09-26 | Engine electronic throttle control apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2665380Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101708718B (en) * | 2009-12-14 | 2013-03-06 | 奇瑞汽车股份有限公司 | Wire control braking system and braking method thereof |
| CN103362680A (en) * | 2013-08-08 | 2013-10-23 | 安徽江淮汽车股份有限公司 | Basic calibration system of vehicle engine control unit |
| CN106351748A (en) * | 2016-08-26 | 2017-01-25 | 南京奥联汽车电子电器股份有限公司 | CAN (controller area network) bus control based intelligent throttle valve circuit |
-
2003
- 2003-09-26 CN CN 03249070 patent/CN2665380Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101708718B (en) * | 2009-12-14 | 2013-03-06 | 奇瑞汽车股份有限公司 | Wire control braking system and braking method thereof |
| CN103362680A (en) * | 2013-08-08 | 2013-10-23 | 安徽江淮汽车股份有限公司 | Basic calibration system of vehicle engine control unit |
| CN106351748A (en) * | 2016-08-26 | 2017-01-25 | 南京奥联汽车电子电器股份有限公司 | CAN (controller area network) bus control based intelligent throttle valve circuit |
| CN106351748B (en) * | 2016-08-26 | 2019-05-21 | 南京奥联汽车电子电器股份有限公司 | A kind of circuit of the intelligent air throttle based on CAN bus control |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100340754C (en) | Electronic throttle body | |
| CN202144763U (en) | Device for controlling electronic throttle valve of engine | |
| CN106042976B (en) | Real-time torque optimization distributes control method to a kind of distributed-driving electric automobile online | |
| CN102060009B (en) | Braking system with electronic braking assisting function | |
| CN101739862B (en) | Electronic throttle control simulation experiment system | |
| CN104627024B (en) | Improve the control method of pure electric vehicle driving | |
| CN101614277A (en) | Tractor dynamic power shift gear box electrical control unit | |
| CN103261637B (en) | Internal combustion engine control apparatus | |
| CN106321255A (en) | Stepping motor-based automatic control system for open degree of throttle gate of automobile | |
| CN101975115B (en) | Method for controlling throttle valve and EGR valve | |
| CN2665380Y (en) | Engine electronic throttle control apparatus | |
| KR20070063336A (en) | Method for determining optimal drive point in series and parallel hybrid car | |
| CN104334859A (en) | Controller for internal combustion engines | |
| CN108661813A (en) | Natural gas engine idling undulated control strategy | |
| CN101634249A (en) | Engine throttle | |
| CN103174524A (en) | Electronic throttle valve control system | |
| CN206589955U (en) | A kind of solenoid-operated hydraulic booster type steering | |
| CN201742362U (en) | Motor controller for electric automobile | |
| WO2007107466A3 (en) | Method for operating a hybrid drive | |
| CN202338402U (en) | Modified electronic throttle controller | |
| CN208277858U (en) | A kind of electric automobile control structure | |
| CN206987970U (en) | A kind of pilotless automobile throttle system | |
| CN110341454A (en) | A kind of twin-engined hybrid power heavy type motor vehicle drive systems and its application method | |
| CN210912403U (en) | Hybrid power system | |
| CN101311513A (en) | Power consumption control method for vehicle air conditioning |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20130926 Granted publication date: 20041222 |