CN201363198Y - Electronic throttle controller of engine - Google Patents
Electronic throttle controller of engine Download PDFInfo
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- CN201363198Y CN201363198Y CNU2009201063322U CN200920106332U CN201363198Y CN 201363198 Y CN201363198 Y CN 201363198Y CN U2009201063322 U CNU2009201063322 U CN U2009201063322U CN 200920106332 U CN200920106332 U CN 200920106332U CN 201363198 Y CN201363198 Y CN 201363198Y
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Abstract
The utility model relates to an electronic throttle controller of an engine, which is composed of a central processing unit, a control area network (CAN) bus communication circuit, a pulse width modulating (PWM) signal enhancement circuit, a metal oxide semiconductor central processing unit (MOS) driving circuit, a frequency signal detecting circuit, an A/D converting circuit, a power fail protective circuit and a throttle valve selective circuit; the electronic throttle controller is characterized in that: the electronic throttle controller both can control an oscillating bar throttle valve and a position type throttle valve which have different purposes, can realize to change ID, Baud rate, the throttle idling position and the throttle maximum position in an on-line way; meanwhile, the controller has the functions of power fail protection, communication detection and processing, AD off-line detection and processing, rotation blocking detection and processing and the like. The electronic throttle controller replaces the application of an ECU electronic controller in construction machinery, thereby meeting the special requirements of construction mechanical equipment from a plurality of aspects and having remarkable economic benefit and good application prospect.
Description
(1) technical field
The utility model relates to a kind of controller, and particularly a kind of electronic throttle controller of engine belongs to dynamic power machine Throttle Opening Control technical field.
(2) background technique
Engineering machinery is in bad working environment and big repeatedly load operation for a long time, the general hydraulic driving that adopts of its engineer operation part, be that motor drags the electric-controlled hydraulic pumping plant, load is controlled by automatically controlled various valves or manually-operated gate, and actuators such as drive motor or oil hydraulic cylinder make rotation or straight line motion.The movement velocity of drive motor or oil hydraulic cylinder is subjected to the control of two aspects, and the one, decide movement velocity with the valve openings size, control range is little, and mainly as positioning control, control accuracy is a leading indicator; The 2nd, by the movement velocity of pump delivery size each drive motor of decision or oil hydraulic cylinder, to reach the purpose of control whole system speed.Therefore, generally when operation, the operator often wishes to adopt handle of manipulation to realize fully by automatic control system to construction machinery industry, promptly controls realization automatically by the dynamoelectric accelerograph controller.Because the operating time of engineering mechanical device is long, variation is frequent, excursion is little, therefore tight to the requirement of dynamoelectric accelerograph, should precision height, long service life again.This throttle control compare with other throttle control have engine speed feedback, regulate fuel delivery automatically, operate steadily, efficient height, structure are tightly read, advantage such as easy to operate.
At present, some the well-known diesel engine employing ECU of producer electron controls technologies are controlled the fuel injection quantity and the rotating speed of motor in the world, its advantage is that amount of fuel can be regulated automatically according to the size of load, and the rotating speed lifting acceleration of motor obtains the control of optimum Match control, rotating speed have been cancelled traditional flexible axle and made mechanical structure simplify.Shortcoming is to cost an arm and a leg, and particularly for engineering machinery, because their electronic control unit (ECU) software privacy, control mode and parameter can't be revised the special requirement that adapts to engineering machinery, and therefore a small amount of use is only arranged at home.
Therefore, research is adopted the electronic control throttle of diesel engine to replace the ECU electron controls technology and is controlled motor, becomes particularly important with the automatic control of finishing Engine Injection Mass.The utility model is exactly a throttle control that designs at diesel engine, and this controller can satisfy the control requirement of position and discharge capacity two aspects simultaneously.Simultaneously, controller has also increased functions such as faut detection processing, the reliability and the Security that have improved equipment.
(3) model utility content
1, purpose: the purpose of this utility model provides a kind of electronic throttle controller of engine, and it has overcome the deficiencies in the prior art, has replaced the application of ECU electronic controller aspect engineering machinery, many-sided specific (special) requirements of satisfying engineering mechanical device.
2, technological scheme: the utility model is a kind of electronic throttle controller of engine; it is by central processing unit (CPU); control area net (CAN) bus communication circuit; pulse duration modulation (PWM) signal intensifier circuit; MOS type field effect transistor (MOS) tube drive circuit, frequency signal testing circuit, A/D change-over circuit; power down protection circuit, throttle valve select circuit to form.
Described central processing unit (CPU) is the Philip single-chip microcomputer P89V51RD2FN that carries the PWM function.
Described CAN bus communication circuit comprises CAN bus control unit, CAN bus isolation circuit and CAN bus transceiver; This CAN bus control unit is AN82527, and it links to each other with the CAN transceiver by the CAN bus isolation circuit, realizes the CAN bus communication, improves the antijamming capability of bus; This CAN bus isolation circuit is made up of two light-coupled isolation chip 6N137, wherein the input signal pin of a slice links to each other with CAN bus control unit output signal pin, the output signal pin links to each other with the input signal pin of CAN transceiver, the input signal pin of a slice links to each other with CAN transceiver output signal pin in addition, and the output signal pin links to each other with the input signal pin of CAN bus control unit; This CAN bus transceiver is PCA82C250, and CANH and two pins of CANL by chip directly are connected with the CAN bus; This controller both can pass through numerical value such as CAN bus online modification throttle idle speed value, throttle maximum value and control accuracy, and the position thresholding of throttle also can be set by throttle idling on the controller and maximum position resistance.This controller can online modification ID number and baud rate, to satisfy the requirement of different nodes and different communication baud rate, can realize the synchronization control of a plurality of throttle valves.
Described pwm signal intensifier circuit is made up of phase inverter 74HC04 and driver MC1413; Phase inverter 74HC04 input pin links to each other with the PWM ripple signal output pin of central processing unit (CPU), and its output pin links to each other with the input pin of driver MC1413; Driver MC1413 output pin links to each other with the input pin of metal-oxide-semiconductor driver; This circuit is used to amplify the electric current of PWM ripple signal, so that driven MOS pipe driver.
Described metal-oxide-semiconductor drive circuit mainly is made up of the special driving chip MC34152 of metal-oxide-semiconductor; Its signal input pin links to each other with the output pin of driver MC1413, and the signal output pin directly links to each other with metal-oxide-semiconductor, is used to control the break-make of metal-oxide-semiconductor.
Described frequency signal detects processing circuit, comprises frequency signal conditioning circuit and frequency signal testing circuit.The frequency signal conditioning circuit is made up of operational amplifier LF412 and comparator LM311; The input pin of operational amplifier LF412 links to each other with the frequency signal input pin of external cabling terminal, and its output pin links to each other with the input pin of comparator LM311; The output pin of comparator LM311 links to each other with the input pin of testing circuit; This circuit is used for frequency signal is adjusted into the signal of being convenient to detect, and guarantees not influence each other when the front and back circuit breaks down.The frequency signal testing circuit is made up of frequency divider CD4040 and toggle switch, and the input pin of frequency divider CD4040 links to each other with the output pin of comparator LM311, and its output pin links to each other with the toggle switch input pin; The output pin of toggle switch links to each other with the input pin of central processing unit (CPU) P89V51RD2FN; This comparison circuit is used to reduce the frequency of frequency signal to satisfy the needs that high-frequency signal detects.
Described A/D change-over circuit is made up of MAX197; The input of this A/D change-over circuit links to each other with the output of foot treadle, throttle at idle positioning control resistance, maximum throttle positioning control resistance and position transducer respectively, by input A/D conversion behind the signal condition, obtains magnitude of voltage.
Described power down protection circuit adopts the chip X5045 that power down data do not lose to realize, is used for ID number of memory controller, baud rate, control accuracy, idle position, maximum position etc.When controller powers on, automatic reading of content, the concurrent telecommunications breath of serving, the throttle valve is replied idle position.Revise the controller essential information, upgrade automatically and store fresh information.During the controller power down, information is not lost.Contain simultaneously whether normal trace routine of an X5045 job in program, when undesired or X5045 damaged when data, system was configured to default conditions automatically.
Described throttle valve is selected circuit, by the switch of alternative and controlling party to relay form; One tunnel output signal of this switch links to each other with swing link type throttle valve, and another road links to each other with relay, the selection that is used to select the type of throttle valve and realizes throttle valve control mode.
The utility model is by the controller of compatible swing link type of design and two kinds of different purposes throttle valves controls of position model, to reach the purpose that satisfies positioning control and flow control in the engineering machinery.During swing link type control, by the signal of reception foot treadle or the control command on the CAN bus, the output of control PWM ripple, the i.e. on state of metal-oxide-semiconductor, adjust the dutycycle of PWM ripple then according to the difference of the rotating speed of detected motor and rotating speed of target, realize the accurate control of throttle; During the control of position model throttle valve, behind the signal or the control command on the reception CAN bus of controller by the detection foot treadle, obtain the size of required throttle, then, by the residing position of the detection current oil family of power and influence, and both difference of comparison, by turning to of relay control throttle valve motor, the PWM ripple is controlled throttle valve rotating speed of motor, thereby reaches the accurate control of throttle.Two kinds of control modes of the utility model are optional, both can send control command by the CAN bus to throttle control and realize the control of throttle size by other controllers, also foot treadle directly can be connected on the throttle control, by the position of controller according to pedal, the size of control throttle.The control algorithm of throttle is the control algorithm that ratio-integration-microcontroller (PID) combines with the control of rod rod.In the control of position model throttle valve, according to the order that receives, control the size of throttle, set up the relation of throttle desired value and PWM dutycycle, by pid algorithm and excellent algorithm, realize the accurate control of throttle; In the swing link type Throttle Opening Control, according to the order that receives, control rotating speed of motor, set up the instruction relation of motor speed feedback and PWM dutycycle, by pid algorithm, regulate the size of dutycycle, control motor speed, thereby reach the purpose of control throttle size.
The utlity model has communication outage and detect processing, the A/D burn out detection is handled, fault treatment functions such as motor rotation blockage processing.Communication outage detects and adopts heartbeat detection to realize that under the normal condition, the every 10ms of last level controller sends out a subcommand to the throttle valve control, and throttle control is replied an answer signal after receiving order.All do not receive data if surpass 200ms both sides, then representative communication goes wrong, and module transfers the foot treadle signal on the direct acquisition controlling plate to, the throttle valve is controlled, and sent the communication outage alarm.The A/D burn out detection is whether the input of detection position sensor is normal, because engineering machinery environment of living in is abominable, controller all is in the vibration environment usually, and therefore, it is necessary that the A/D line is detected.The method that realizes is at its input end and connects a very large resistance, if broken string appears in the AD line, then the AD conversion value just keeps nought state always.The throttle valve powers on, and automatically reverts to idling mode, and therefore, under the normal condition, AD is very short in the time at zero point.Still be in zero state if the AD conversion value surpasses certain hour, the AD broken string then is described, controller gives the alarm.In actual applications, the throttle valve is because the problem of demarcating etc., stretch out or the withdrawal process in, the stall phenomenon can appear, at this moment, the electric current of motor can increase rapidly, therefore on the basis that motor is protected, also will carry out stall and handle.The utility model is for detecting the current value that flows through motor, and when electric current surpassed certain value, motor reversed, and sends the stall alarm.
Software of the present utility model is realized as shown in Figure 2.
3, advantage and effect:
The utility model is a kind of electronic throttle controller of engine, and its advantage is the control of compatible swing link type and two kinds of different purposes throttle valves of position model; Have CAN bus communication function, can realize the synchronization control of a plurality of throttle valves; Can be implemented in line and revise ID, baud rate, throttle idle position and throttle maximum position; Two kinds of control modes are optional; both can send control command by the CAN bus to throttle control and realize the control of throttle size by other controllers; also can directly be connected on foot treadle on the throttle control; by the position of controller according to foot treadle; the size of control throttle, and have functions such as power down protection, communication check processing, the processing of AD burn out detection, stall detection processing.
A kind of electronic throttle controller of engine of the utility model can satisfy the engine throttle demand for control of most of engineering machinery.At present, this electronic accelerator controller has been applied in some engineering machinery, and is stable, and obtained good economic benefit.
(4) description of drawings
Fig. 1 motor dynamoelectric accelerograph controller principle schematic representation
Fig. 2 program circuit schematic representation
Symbol description is as follows among the figure:
1 central processing unit (CPU); 2CAN bus communication circuit; The 3PWM signal intensifier circuit; The 4MOS tube drive circuit; 5 frequency signal testing circuits; The 6A/D change-over circuit; 7 power down protection circuit; 8 throttle valves are selected circuit;
(5) embodiment
The utility model is a kind of electronic throttle controller of engine, and it is mainly used on the engineering machinery vehicle.As shown in Figure 1, the utility model mainly is made up of following components: central processing unit (CPU) 1, CAN bus communication circuit 2; pwm signal intensifier circuit 3, metal-oxide-semiconductor drive circuit 4, frequency signal testing circuit 5; A/D change-over circuit 6, power down protection circuit 7, the throttle valve is selected circuit 8.
Described central processing unit (CPU) 1 is the Philip single-chip microcomputer P89V51RD2FN that carries the PWM function.
Described CAN bus communication circuit 2 comprises the CAN bus control unit, CAN bus isolation circuit and CAN bus transceiver; This CAN bus control unit is AN82527, and it links to each other with the CAN transceiver by the CAN bus isolation circuit, realizes the CAN bus communication, improves the antijamming capability of bus; This CAN bus isolation circuit is made up of two light-coupled isolation chip 6N137, wherein the input signal pin of a slice links to each other with CAN bus control unit output signal pin, the output signal pin links to each other with the input signal pin of CAN transceiver, the input signal pin of a slice links to each other with CAN transceiver output signal pin in addition, and the output signal pin links to each other with the input signal pin of CAN bus control unit; This CAN bus transceiver is PCA82C250, and CANH and two pins of CANL by chip directly are connected with the CAN bus; This controller both can pass through numerical value such as CAN bus online modification throttle idle speed value, throttle maximum value and control accuracy, and the position thresholding of throttle also can be set by throttle idling on the controller and maximum position resistance.This controller can online modification ID number and baud rate, to satisfy the requirement of different nodes and different communication baud rate, can realize the synchronization control of a plurality of throttle valves.
Described pwm signal intensifier circuit 3 is made up of phase inverter 74HC04 and driver MC1413; Phase inverter 74HC04 input pin links to each other with the PWM ripple signal output pin of central processing unit (CPU), and its output pin links to each other with the input pin of driver MC1413; Driver MC1413 output pin links to each other with the input pin of metal-oxide-semiconductor driver; This circuit is used to amplify the electric current of PWM ripple signal, so that driven MOS pipe driver.
Described metal-oxide-semiconductor drive circuit 4 mainly is made up of the special driving chip MC34152 of metal-oxide-semiconductor; Its signal input pin links to each other with the output pin of driver MC1413, and the signal output pin directly links to each other with metal-oxide-semiconductor, is used to control the break-make of metal-oxide-semiconductor.
Described frequency signal detects processing circuit 5, comprises frequency signal conditioning circuit and frequency signal testing circuit.The frequency signal conditioning circuit is made up of operational amplifier LF412 and comparator LM311; The input pin of operational amplifier LF412 links to each other with the frequency signal input pin of external cabling terminal, and its output pin links to each other with the input pin of comparator LM311; The output pin of comparator LM311 links to each other with the input pin of testing circuit; This circuit is used for frequency signal is adjusted into the signal of being convenient to detect, and guarantees not influence each other when the front and back circuit breaks down.The frequency signal testing circuit is made up of frequency divider CD4040 and toggle switch, and the input pin of frequency divider CD4040 links to each other with the output pin of comparator LM311, and its output pin links to each other with the toggle switch input pin; The output pin of toggle switch links to each other with the input pin of central processing unit (CPU) P89V51RD2FN; This comparison circuit is used to reduce the frequency of frequency signal to satisfy the needs that high-frequency signal detects.
Described A/D change-over circuit 6 is made up of MAX197; The input of this A/D change-over circuit links to each other with the output of foot treadle, throttle at idle positioning control resistance, maximum throttle positioning control resistance and position transducer respectively, by input A/D conversion behind the signal condition, obtains magnitude of voltage.
Described power down protection circuit 7 adopts the chip X5045 that power down data do not lose to realize, is used for ID number of memory controller, baud rate, control accuracy, idle position, maximum position etc.When controller powers on, automatic reading of content, the concurrent telecommunications breath of serving, the throttle valve is replied idle position.Revise the controller essential information, upgrade automatically and store fresh information.During the controller power down, information is not lost.Contain simultaneously whether normal trace routine of an X5045 job in program, when undesired or X5045 damaged when data, system was configured to default conditions automatically.
Described throttle valve is selected circuit 8, by the switch of alternative and controlling party to relay form; One tunnel output signal of this switch links to each other with swing link type throttle valve, and another road links to each other with relay, the selection that is used to select the type of throttle valve and realizes throttle valve control mode.
The throttle valve control has 10 input/output signals: the input of 24V power supply, the input of 24V ground, the i.e. power supply of whole system input; The AD input, i.e. position model throttle position input; The frequency input connects the motor speed measurement sensing that swing link type throttle valve is controlled, and is used to measure rotating speed of motor; Motor positive and negative terminal interface, promptly the power line of position model throttle valve is used for linking to each other with throttle valve 8b; CANH and CANL, i.e. the high-low signal line of CAN bus; The output of 5V power supply, the output of 5V ground, this signal provides power supply for position model throttle valve sensor.
The throttle valve control has 5 power transfer module: module one, and 24V commentaries on classics ± 12V is used for to the used amplifier power supply of frequency detecting; Module two, 24V changes 15V, is used for powering to the metal-oxide-semiconductor driving chip; Module three, 5V is not isolated in the 24V commentaries on classics, is used for to central processing unit (CPU), AD chip, comparator and the power supply of CAN controller; Module four, 24V changes the common 5V of isolation, is used for improving the antijamming capability of communication to optical coupling isolation circuit and the power supply of CAN transceiver; Module five, 24V changes the accurate 5V power supply of isolation, is used for to foot treadle, position model throttle valve sensor, idling resistance and the power supply of maximum position resistance, to improve precision.
Software of the present utility model is realized as Fig. 2, specific implementation process: power-up initializing CAN bus ID number, and baud rate, idle position, high speed position, control accuracy etc., and throttle opened to idle position.Enter the control mode detection-phase then, close throttle if be in, then throttle is closed; If throttle is in the communication control state, then control according to the data that receive on the CAN bus; If automatic control control then enters automatic Various types of data, and enters the automatic control process state.Under the communication control state, when adopting swing link type throttle valve, obtain the due rotating speed of motor by CAN bus or foot treadle, the pulse feedback signal that produces when pulse signal sensor acquisition motor rotates, feedback frequency divides three retainings, can select according to the gear number of teeth of motor, signal is through sending central processing unit (CPU) after conditioning, comparison, the frequency division.After signal frequency detects, according to the number of teeth and the actual motor speed of distribution condition reduction of motor gear.Set up the proportionate relationship between instruction and the feedback rotating speed, the dutycycle of control PWM, thereby the size control of realization throttle, i.e. rotating speed of motor control; When adopting position model throttle valve, obtain the position signal of throttle by CAN bus or foot treadle, obtain the position of throttle by the position transducer of throttle valve, set up the corresponding relation between instruction and the position, the control electromagnetic relay is realized forward and reverse rotation control of motor, control PWM dutycycle realizes flexible speed control, from but the accurate control of throttle size.Under automatic control state, at first detect the foot treadle position, obtain the position or the motor speed of throttle valve then, after the calculating, obtain the difference of command signal and existing signal,, then control the dutycycle that the throttle valve stretches out or increase PWM if the foot treadle command signal is bigger than value of feedback; If the foot treadle command signal, is then controlled the withdrawal of throttle valve less than value of feedback or is reduced the empty ratio in station of PWM; If foot treadle command signal and feedback signal are in margin of error, then flexible the or maintenance swing link type throttle valve PWM dutycycle of stop position formula throttle valve is constant.
The control algorithm that the utility model adopts PID to combine with BangBang.In the control of position model throttle valve, according to the order that receives, control the size of throttle, set up the relation of throttle desired value and PWM dutycycle, by pid algorithm and BANGBANG algorithm, realize the accurate control of throttle; In the swing link type Throttle Opening Control, according to the order that receives, the control rotating speed of motor, the instruction of setting up motor speed feedback and PWM dutycycle concerns, by pid algorithm, regulates the size of dutycycle, control motor speed, thereby the size of control throttle.
The utlity model has communication outage and detect processing, just often, every 10ms throttle valve control can be received a subcommand, and replys answer signal.All do not receive data if surpass 200ms both sides, then representative communication goes wrong, and module transfers the foot treadle signal on the direct acquisition controlling plate to, the throttle valve is controlled, and sent the communication outage alarm.
The utility model comprises the AD burn out detection, and purpose is whether the input of detection position sensor is normal.Its input end also connects a very large resistance, if broken string appears in the AD line, then the AD conversion value just keeps nought state always.The throttle valve powers on, and promptly is returned to idling mode, and therefore, under the normal condition, AD is very short in the time at zero point.Still be in zero state if the AD conversion value surpasses certain hour, the AD broken string then is described, controller gives the alarm.
The utlity model has the stall processing capacity because the problem of demarcating etc., the position model throttle stretch out or the withdrawal process in; the stall phenomenon can occur, at this moment, the electric current of motor can increase rapidly; therefore on the basis that motor is protected, also to carry out stall and handle.The utility model is for detecting the current value that flows through motor, and when electric current surpassed certain value, motor reversed, and sends the stall alarm.
Claims (1)
1. electronic throttle controller of engine, its feature comprises: this controller is by central processing unit (CPU), control area net bus communication circuit, the pulse width modulating signal intensifier circuit, MOS type field effect transistor tube drive circuit, frequency signal testing circuit, A/D change-over circuit, power down protection circuit, throttle valve select circuit to form;
Described central processing unit (CPU) is the Philip single-chip microcomputer P89V51RD2FN that carries the PWM function;
Described CAN bus communication circuit comprises CAN bus control unit, CAN bus isolation circuit and CAN bus transceiver; This CAN bus control unit is AN82527, and it links to each other with the CAN transceiver by the CAN bus isolation circuit; This CAN bus isolation circuit is made up of two light-coupled isolation chip 6N137, wherein the input signal pin of a slice links to each other with CAN bus control unit output signal pin, the output signal pin links to each other with the input signal pin of CAN transceiver, the input signal pin of a slice links to each other with CAN transceiver output signal pin in addition, and the output signal pin links to each other with the input signal pin of CAN bus control unit; This CAN bus transceiver is PCA82C250, and CANH and two pins of CANL by chip directly are connected with the CAN bus;
Described pwm signal intensifier circuit is made up of phase inverter 74HC04 and driver MC1413; Phase inverter 74HC04 input pin links to each other with the PWM ripple signal output pin of central processing unit (CPU), and its output pin links to each other with the input pin of driver MC1413; Driver MC1413 output pin links to each other with the input pin of metal-oxide-semiconductor driver;
Described metal-oxide-semiconductor drive circuit mainly is made up of the special driving chip MC34152 of metal-oxide-semiconductor; Its signal input pin links to each other with the output pin of driver MC1413, and the signal output pin directly links to each other with metal-oxide-semiconductor;
Described frequency signal detects processing circuit, comprises frequency signal conditioning circuit and frequency signal testing circuit; The frequency signal conditioning circuit is made up of operational amplifier LF412 and comparator LM311; The input pin of operational amplifier LF412 links to each other with the frequency signal input pin of external cabling terminal, and its output pin links to each other with the input pin of comparator LM311; The output pin of comparator LM311 links to each other with the input pin of testing circuit; The frequency signal testing circuit is made up of frequency divider CD4040 and toggle switch, and the input pin of frequency divider CD4040 links to each other with the output pin of comparator LM311, and its output pin links to each other with the toggle switch input pin; The output pin of toggle switch links to each other with the input pin of central processing unit (CPU) P89V51RD2FN;
Described A/D change-over circuit is made up of MAX197; The input of this A/D change-over circuit links to each other with the output of foot treadle, throttle at idle positioning control resistance, maximum throttle positioning control resistance and position transducer respectively, by input A/D conversion behind the signal condition;
Described power down protection circuit, the chip X5045 that adopts power down data not lose realizes;
Described throttle valve is selected circuit, by the switch of alternative and controlling party to relay form; One tunnel output signal of this switch links to each other with swing link type throttle valve, and another road links to each other with relay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009201063322U CN201363198Y (en) | 2009-03-04 | 2009-03-04 | Electronic throttle controller of engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009201063322U CN201363198Y (en) | 2009-03-04 | 2009-03-04 | Electronic throttle controller of engine |
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| CN201363198Y true CN201363198Y (en) | 2009-12-16 |
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| CNU2009201063322U Expired - Lifetime CN201363198Y (en) | 2009-03-04 | 2009-03-04 | Electronic throttle controller of engine |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102108903A (en) * | 2009-12-25 | 2011-06-29 | 中国第一汽车集团公司 | Remote accelerator control method |
| CN103171545A (en) * | 2013-03-15 | 2013-06-26 | 清华大学 | Integrated control system and control method of automobile accelerator and braking |
| CN104632428A (en) * | 2013-11-22 | 2015-05-20 | 广西柳工机械股份有限公司 | Control method for engineering machinery engine throttle |
| CN112842784A (en) * | 2020-12-31 | 2021-05-28 | 河北谊安奥美医疗设备有限公司 | Intelligent speed regulation control device for hydraulic system of electric operating table |
-
2009
- 2009-03-04 CN CNU2009201063322U patent/CN201363198Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102108903A (en) * | 2009-12-25 | 2011-06-29 | 中国第一汽车集团公司 | Remote accelerator control method |
| CN103171545A (en) * | 2013-03-15 | 2013-06-26 | 清华大学 | Integrated control system and control method of automobile accelerator and braking |
| CN103171545B (en) * | 2013-03-15 | 2016-01-20 | 清华大学 | A kind of gas and braking integrated control system and control method |
| CN104632428A (en) * | 2013-11-22 | 2015-05-20 | 广西柳工机械股份有限公司 | Control method for engineering machinery engine throttle |
| CN112842784A (en) * | 2020-12-31 | 2021-05-28 | 河北谊安奥美医疗设备有限公司 | Intelligent speed regulation control device for hydraulic system of electric operating table |
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| C14 | Grant of patent or utility model | ||
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