711 results about "Electronic throttle" patented technology

The invention discloses a hierarchical system used for a four-wheel-hub motor-driven electric automobile, and a control method. First of all, yaw moment is calculated as a yaw moment decision-making layer according to a vehicle speed sensor, a steering wheel rotary angle transmitter, an electronic throttle sensor and an inertia measurement unit; then according to automobile longitudinal force constraints, yaw moment constraints, a maximum adhesion force which can be provided by a pavement and restrictions of motor maximum output moment, target torque of each wheel hub motor is calculated as a target optimization analysis layer; and finally, degrees of similarity to six standard pavements are obtained by inputting two parameters, i.e., an adhesion coefficient and a wheel slip rate into a pavement adhesion coefficient estimation fuzzy controller by means of a current pavement, and an adhesion coefficient estimated value of the current pavement is obtained as a pavement adhesion coefficient monitoring layer after weighted averaging is performed. According to the invention, whole-vehicle stability is taken as a control target, motor torque is reasonably distributed according to operation working conditions, and the controllability, the stability and the economic property of vehicles are improved.

The present invention is directed to apparatuses, programs, methods, devices, and / or systems for administering water to an area in need of irrigation. For example, an irrigation unit uses a microprocessor to control its fluid dynamics to affectivity save water and enhance uniform water distribution to and area of grass. The microprocessor controls a pivot motor or solenoid, and an electronic throttle that waters lawns in any configuration or pattern; the sprinkler still retains the ability to pop out of the ground and rotate N×360 degrees.

The present invention related to an electronic organ type accelerator pedal. The electronic organ type accelerator pedal according to the present invention is capable of enhancing stability by the compression spring having a double structure and the carrier restricting the reverse rotation of the foot plate, while maintaining the benefit of the electronic accelerator pedal which is capable of ensuring space, improving an operation feeling and reducing driver's fatigue since the electronic accelerator pedal is not influenced by tension changes of the cable, and improving fuel efficiency by improving fuel consumption rate.

A boat control system can include a propulsion unit controller, a port outboard motor, and a starboard outboard motor. The propulsion unit controller can includes an electronic throttle valve control section, an electronic shift control section, an electronic steering control section, a target control value calculating section, and a GPS receiver. The target control value calculating section can be adapted to calculate engine revolutions and steering angles corresponding to target values of the port outboard motor and the starboard outboard motor based on target values preset by an operator and values detected by the GPS receiver.

The invention discloses an electromobile range extender and a control method. The electromobile range extender consists of an engine, an engine ECU (Electronic Control Unit), an electronic throttle valve controller, a direct current starter, an engine speed sensor, an alternating current permanent magnet synchronous motor, a three-phase full-control rectifier, filter capacitors, voltage sampling resistors, a current sensor, a freewheeling diode and a three-phase full-control rectifying voltage regulation phase-shift trigger, wherein the engine is started by the starter and then drags the alternating current permanent magnet synchronous motor to generate electricity and output the three-phase alternating current voltage to the thyristor three-phase full-control rectifier; after the direct current pulsating voltage output by the rectifier is filtered by the two filter capacitors connected in series, the three-phase full-control rectifying voltage regulation phase-shift trigger acquires the output voltage and current of the range extender to obtain the output power, and adjusts a conduction angle according to the power to realize closed-loop control of the power; and the electronic throttle valve controller acquires the engine speed, adjusts the throttle valve opening, and realizes the closed-loop control of the engine speed. The electromobile range extender and the control method have the advantages of low cost and high control precision.

A boat control system can include a propulsion unit controller, a port outboard motor, and a starboard outboard motor. The propulsion unit controller can includes an electronic throttle valve control section, an electronic shift control section, an electronic steering control section, a target control value calculating section, and a GPS receiver. The target control value calculating section can be adapted to calculate engine revolutions and steering angles corresponding to target values of the port outboard motor and the starboard outboard motor based on target values preset by an operator and values detected by the GPS receiver.

The invention relates to emission control for a heavy-duty diesel engine. In order to provide a method and a device for achieving the low emission of the heavy-duty diesel engine through controlling exhaust temperature, the invention adopts an exhaust temperature control unit of the engine. The method comprises the following steps of: (1) respectively reading a rotate speed signal from an engine crankshaft sensor and a load signal from an accelerator pedal sensor by the exhaust temperature electric control unit of the engine; (2) controlling exhaust gas temperature according to the judged result of the step (1); (3) adopting an auxiliary heat preservation measure on an exhaust pipe except adopting variable valve actuation (VVA), an electronic throttle, cold air filling and the like to regulate the exhaust temperature; and (4) optimizing the burning process to increase the jet pressure of fuel, and adopting a flexibly variable jet control strategy. The invention is mainly applied to the emission control for the heavy-duty diesel engine.

An automatic transmission ratio shift and shift feel control system and method for a powertrain having an engine, multiple-ratio gearing controlled by friction elements actuated by hydraulic pressure, an output shaft torque sensor producing a signal representing the magnitude of current output torque, an electronic controller for controlling the target output torque based on the current output torque, increasing the torque capacity of the oncoming friction element and decreasing the torque capacity of the offgoing friction element after a gear ratio change is initiated. During the inertia phase of the ratio change, the controller controls the engine speed to follow a predetermined rate of change of input speed. The strategy employs an electronic throttle and closed loop engine torque control and closed loop engine speed control at various phases of the gear shift, to improve shift feel. Various engine parameters, including throttle position, ignition timing, engine air-fuel ratio, and engine airflow, control engine torque and speed, are used to control input torque or input speed, depending upon the shift phase.

The invention discloses a safety handling method of electronic accelerator signals for an automobile. The method comprises the following steps: carrying out shunt collecting by two ways on original voltage signals of an electronic accelerator pedal through a voltage division circuit; carrying out normalization treatment on the voltage signals of the two-way electronic accelerator pedal to acquirea reliable percentage value; finally selecting the normalization value of the voltage signals of a one-way electronic accelerator pedal as an output value of the electronic accelerator pedal by combining a diagnosis module based on diagnosis signals of a hardware layer and position signals of a brake pedal which are output by a shunt circuit; and simultaneously controlling the numerical value andchange rate of the output value of the electronic accelerator pedal. Therefore, according to the invention, when the voltage signals of the electronic accelerator pedal is abnormal, reasonable and malfunctions, unexpected automobile acceleration and speed reduction actions are avoided through an appropriate judge strategy and a stoppage coping mechanism, thus other motive system control modules which takes the acceleration pedal signals as inputs are ensured to operate safely and reliably.

The invention provides a control method of an electronic throttle valve of an engine; wherein, the control method comprises the following steps of: detecting the initial openness or the current openness of the electronic throttle valve; adopting a basic method to control the duty ratio of a PWM signal when the absolute value of the difference value of the initial openness or the current openness of the electronic throttle valve and the target openness is more than X, so as to control rate of change of the openness of opening or closing the electronic throttle valve; and adopting a PID method to control the duty ratio of the PWM signal when the absolute value of the difference value of the initial openness or the current openness of the electronic throttle valve and the target openness is less than or equal to X, so as to control rate of change of the openness of opening or closing the electronic throttle valve; wherein, the range of the X is 2 degrees to 6 degrees. The control method of the electronic throttle valve of the engine can realize the fastness and smoothness of operation of a throttle valve disc when the difference value is more and can realize the accuracy of the operation of the throttle valve disc and prevent overshoot when the difference value is less.

An engine control system in a vehicle including an internal combustion engine, an electronic throttle controlling air flow to the internal combustion engine, a controller controlling the position of the electronic throttle, an accelerator pedal having an accelerator pedal sensor that generates a signal to the controller, and where the controller computes a rate of change for the accelerator pedal and actuates the electronic throttle to a desired position based upon the rate of change for the accelerator pedal.

An automatic transmission ratio shift control system and method for a powertrain having an engine and multiple-ratio gearing controlled by friction elements actuated by hydraulic pressure, an electronic controller for establishing torque transitions among the friction elements as the gear ratio changes, the engine speed being controlled by an electronic throttle control. The strategy employs an electronic throttle and closed loop engine speed control and uses fuel and air as an energy source to increase engine speed during a power-off downshift. The engine speed is boosted to a level close to the synchronous speed in conjunction with release of the off-going friction element. The on-coming friction element is then applied as the engine speed approaches a desired speed. The engine speed increase is timed to lead an increase in torque converter speed.

The invention discloses an intelligent vehicular safeguard system comprising a vehicular central console. The central console is connected with an electronic throttle valve, a satellite positioning module, a visible light communication module, an LTE module and a merging information acquisition module. The LTE module is connected with a cloud information processing center through the LTE network. The visible light communication module is connected with a vehicle lamp of a vehicle. Through the application of the intelligent vehicular safeguard system, intelligent information sharing and active safeguard based on merged information acquisition are provided, safety of vehicles is ensured effectively, and vehicle accidents are prevented effectively.

The invention provides an automobile starting / stopping system with a traffic light identifying function and a control method thereof, belonging to the technical field of automobiles. Through the system and method thereof, the problem that the vehicle does not have an automatic starting / stopping function in the traffic light condition in the prior art is solved. The system comprises a traffic light detection device, an electronic control unit, a vehicle electronic stability control system and an electronic accelerator pedal, wherein the traffic light detection device is connected with a signal input end of the electronic control unit; and the electronic stability control system (ESC) and the electronic accelerator pedal are connected with a signal output end of the electronic control unit respectively. The control method comprises: A, a step of image signal acquisition; B, a step of image signal pretreatment; C, a step of image analysis treatment; and D, a step of starting / stopping control. The system reduces the driving fatigue of the driver and realizes easier and safer driving.

The invention relates to a device for preventing selected users from driving a vehicle above a particular speed. The speed limit value can be programmed by the selected users by driving the vehicle at a desired speed limit and providing programming instruction. The device provides, from acceleration control signals received from the acceleration pedal, altered acceleration control signals. When in non speed limiting mode, the device simply forwards the acceleration control signals to the engine control unit or the electronic throttle controller. When in speed limiting mode, the device makes no change to the acceleration control signals if the vehicle speed is below the speed limit value and alters the acceleration control signals if the vehicle speed reaches the speed limit value, in order to limit the speed of the car.

The invention discloses a system and method for controlling the air-fuel ratio of an electronic control servo pressure regulating type natural gas engine. The system comprises a fuel gas supply device, a compressed natural gas cylinder is connected with a natural gas pressure reduction and stabilization device through a natural gas pipeline, the natural gas pressure reduction and stabilization device is connected with an electronic control servo pressure regulating device through a natural gas filter, the electronic control servo pressure regulating device is connected with one end of a mixer through an air-fuel ratio control device, the other end of the mixer is sequentially connected with an electronic throttle valve, an intake manifold and the natural gas engine, the third end of the mixer is connected with an intercooler and a pressurizer through an air pipeline, and an electronic control system controls the opening degree of a fuel gas control butterfly valve. The flow of natural gas is controlled, the air-fuel ratio of air and the natural gas is precisely controlled, the electronic control system regulates the pressure of the natural gas by utilizing the electronic control servo pressure regulating device according to the pressure of the intake manifold of the natural gas engine, the pressure difference of the pressure in front of the fuel gas control butterfly valve and the pressure of the intake manifold is kept within the set range, and responsiveness and precision of control over the air-fuel ratio are improved.

A method for controlling an engine having both an electronically controlled inlet device, such as an electronic throttle unit, and an electronically controlled outlet device, such as a variable cam timing system is disclosed. The method of the present invention achieves cylinder air charge control that is faster than possible by using an inlet device alone. In other words, the method of the present invention controls cylinder air charge faster than manifold dynamics by coordination of the inlet and outlet device. This improved control is used to improve various engine control functions.

The invention discloses an automatic control system which is capable of preventing a driver from mistakenly stepping on an accelerator to cause a traffic accident. The automatic control system capable of effectively preventing mistaken stepping on an accelerator comprises a distance measurement module, a speed sensor, an acceleration sensor, a microprocessor and an audible and visual alarm, wherein the distance measurement module is used for measuring distance S between a self car and a front car or an obstacle, and the microprocessor calculates the current critical safe braking distance S0 according to information obtained by the speed sensor and a road sensor, assigns a safety factor a and marks a safe braking distance S1. When S is bigger than S0 and smaller than S1, the alarm sounds an alarm to remind the driver to take some measures. When S is smaller than S0, if the driver steps on the accelerator, an electronic control unit (ECU) comprehensively processes information acquired by the acceleration sensor and other system information, whether the driver mistakenly steps on the accelerator is judged, if the driver mistakenly steps on the accelerator, an instruction is output to adjust the opening degree of an air valve and cut off an oil supply system to enable the air valve to lose efficacy, and the fact that the car speeds up to move forward due to the fact the driver mistakenly steps on the accelerator in panic is avoided.

The invention relates to a driving anti-skid control system of a hybrid electric vehicle and a control method thereof; the driving anti-skid control system comprises a brake pressure pipe, a vehicle transmission system and a driving anti-skid control electric signal circuit; the brake pressure pipe comprises an air compressor; the air compressor is connected with a brake cylinder through a valve; the output end of the brake cylinder is connected with two front wheel brake chambers and two input ends of a bi-directional single-way valve through two vehicle brake anti-lock regulating valves, a driving anti-skid regulating valve and a brake pipe, and the input end thereof is connected with two rear wheel brake chambers through the other two vehicle brake anti-lock regulating valves; the vehicle transmission system comprises an engine, and the engine is connected with a transmission mechanism assembly through a motor; the driving anti-skid control electric signal circuit comprises four wheel speed sensors arranged near the wheels; the two wheel speed sensors in the front part and the two vehicle brake anti-lock regulating valves are connected with a brake / driving controller; and the brake / driving controller is respectively connected with the driving anti-skid regulating valve, the controller of the complete vehicle, an electronic throttle, a motor controller, the other two wheel speed sensors and the two vehicle brake anti-lock regulating valves. The invention can be widely applied to the anti-skid control systems of various hybrid electric vehicles.

The invention discloses a self-learning inverse model control method of an electronic throttle. The control method comprises two parts: 1) taking a radial basic function neural network as a recognizer to create the non-linear model of the electronic throttle; 2) taking another RBF neural network to serve as an inverse model controller to obtain an appropriate control amount. The two RBF neural networks adopt a self-learning strategy which comprises an off-line learning step and an on-line learning step. In off-line learning, the two RBF neural networks adjust and optimize network weighting parameters according to on-site sample data; after the off-line learning is completed, an on-line learning algorithm is adopted to adjust and optimize the network weighting parameters of the two RBF neural networks, and then the control performance can meet the requirements. The invention can overcome the difficulties of nonlinearity, time varying and the like in electronic throttle control and improve the control effect and performance.

The invention discloses an electronic throttle valve adaptive backstepping control method based on a Romberg sliding-mode observer, and relates to the technical field of automobile electronic control. Firstly, in order to solve the problem that the change of the opening degree of an electronic throttle valve can not be measured, the change is estimated through the Romberg sliding-mode observer and based on the electronic throttle valve state equation; secondly, approaching is conducted on the nonlinear unknown quantity-gear clearance torque through the approaching characteristic of an RBF neural network; finally, a control law, an RBF network weight renewing law and an interference adaptive law are designed based on the Lyapunov stability theory and through combination with the nonlinear backstepping control method. By means of the method, the problem that nonlinear factors and some parameters easily change over time during electronic throttle valve control can be well solved, and the control effect and dynamic response performance are further improved.

An abnormality monitoring device monitors a PWM driving signal output from a driving section of an associated motor control system to judge whether the driving section is operating abnormally. By monitoring the output of the driving section, the monitoring device can detect an abnormality of the driving section before the motor can respond to the abnormal drive signal to a significant degree (e.g., to a degree readily discernable to a rider of a motorcycle on which the motor control system is employed in combination with an electronic throttle system).

The invention discloses a hybrid power vehicle and the control method; wherein, the hybrid power vehicle comprises an internal-combustion engine, a double-rotor motor, an electric motor / generator, a lock-up clutch, a differential, a storage battery, a control unit, an internal-combustion engine managerial system, an electronic accelerator pedal, a brake pedal, and a gear selector. The first rotor of the double-rotor motor is mechanically connected with the crank shaft of the internal-combustion engine. The second rotor of the double-rotor motor drives the vehicle directly via the differential. The electric motor / generator drives the vehicle directly via the differential. The internal-combustion engine drives the vehicle in power distribution (mechanically and electrically) via the double-rotor motor and the electric motor / generator. The invention has the advantages of enabling a plurality of multiple combinations of pure electric drive, pure mechanical drive, mechanical-electric hybrid drive, brake regeneration electricity generation and peakload-adjusting electricity generation.

A watercraft has an engine that is controlled by an electronic control unit and the engine is controlled by an electronic throttle. The electronic throttle is actuated by a motor that is controlled by and electronic control unit. The ECU operates the electronic throttle according to a torque request from an operator. The electronic throttle is also periodically and / or at predetermined time intervals actuated to ensure proper operation of the throttle valve.

A method for controlling an engine having both an electronically controlled inlet device, such as an electronic throttle unit, and an electronically controlled outlet device, such as a variable cam timing system is disclosed. The method of the present invention achieves cylinder air charge control that is faster than possible by using an inlet device alone. In other words, the method of the present invention controls cylinder air charge faster than manifold dynamics by coordination of the inlet and outlet device. This improved control is used to improve various engine control functions.

A control device of a vehicle drive-train system including an engine, an electronic throttle valve, an automatic transmission having a manual shift mode, a torque converter provided between the automatic transmission and the engine, and a lock-up clutch operable to directly connect an input member and an output member of the torque converter with each other includes a blipping control device that performs blipping control for temporarily increasing the output rotational speed of the engine by means of the electronic throttle valve, when a power-off downshift is performed while the automatic transmission is in the manual shift mode; and a lock-up control device that engages or partially engages the lock-up clutch, based on a difference between a rotational speed of the output member of the torque converter and a rotational speed of the input member thereof, which the difference is reduced after the blipping control is started.