29 results about "Idle speed control" patented technology

The application discloses a hybrid engine idle speed control method and device, a controller and a storage medium. The method comprises the following steps: obtaining an idle speed demand torque by using a PID adjustment method based on an idle speed target speed required by an engine and an actual engine speed obtained; processing the idle speed demand torque to obtain a dynamic part torque and a static part torque; processing the dynamic part torque and the static part torque based on a preset demand torque distribution method to obtain an engine total demand torque and a motor total demand torque; and controlling the engine and the motor to idle based on the engine total demand torque and the motor total demand torque. The application can solve the problem that the engine emission and fuel consumption are difficult to balance in the related art.

This invention relates to an intelligent engine idling speed control method and system, belonging to the field of automotive control. The method reads the current operating status of the vehicle's electrical appliances and matches them against a pre-established appliance combination matrix. If a match is found with any combination in the matrix, the engine idling speed is not increased. The appliance combination matrix includes several combinations, each containing several non-operating appliances. When all appliances in a combination except the non-operating ones are running, the total power consumption does not exceed the power generation when the engine idling speed is not increased. A successful match is considered achieved when the non-operating appliances in the current vehicle's electrical appliances completely match the non-operating appliances in the corresponding combination. If a successful match is found, the engine's power generation is not increased, thus reducing the probability of the engine increasing its speed and lowering the vehicle's fuel consumption.

This application provides an engine idling speed control method, storage medium, and vehicle for a hybrid vehicle, belonging to the field of vehicle control technology. The embodiments of this application identify the triggering mode of the engine idling condition, enabling the matching of a corresponding target proportional-integral (PI) control strategy based on the triggering mode. Based on the target PI control strategy, the PI adjustment torque of the electric motor is determined, effectively meeting the engine idling speed control requirements under various idling conditions. Simultaneously, based on the PI adjustment and combined with the current engine speed difference, torque compensation for the electric motor can be achieved. Then, based on the PI adjustment torque and the compensation torque, the first motor execution torque is determined, and the motor is controlled to output torque according to the first motor execution torque. Utilizing the rapid response characteristics of the electric motor, rapid and stable control of the engine idling speed is achieved.

The invention discloses a vehicle control method, electronic equipment and a vehicle, and relates to the technical field of hybrid power control, and the method comprises the following steps: obtaining a first vehicle data set of the vehicle; the first vehicle data set comprises a first vehicle body stability parameter, vehicle driving mode information and vehicle operation data; the vehicle operation data comprises at least one of vehicle speed, power battery state parameters, clutch working state parameters, engine operation parameters and driver operation intention parameters; based on the first vehicle data set, whether the vehicle meets a to-be-activated condition of controlling idle speed through an engine or not is judged, and when the to-be-activated condition is met, whether the vehicle is in a prohibition condition of controlling idle speed through the engine or not is verified; if not, the vehicle engine is triggered to start the idle speed control function, and the vehicle is controlled to be in the target idle speed state through the idle speed control function of the engine. The precision of idle speed control of the hybrid vehicle can be improved.

The application provides a fuel cell system and a low-idling control method thereof, and belongs to the technical field of fuel cells. The fuel cell system comprises a stack and accessory equipment, the accessory equipment comprises an air compressor, a intercooler, a humidifier, an expander and a regulating valve, the regulating valve comprises a bypass valve and an inlet valve, filtered air enters a cathode input end of the stack in sequence through the air compressor, the intercooler, the humidifier and the inlet valve, a first output end of the intercooler is connected with an input end of the expander through the bypass valve, and the expander rotates coaxially with a motor of the air compressor. The low-idling control method comprises the following steps: controlling the accessory equipment to operate in a minimum power consumption mode, then acquiring a pull current of the stack and an opening degree of the regulating valve; and taking a voltage parameter value of the stack meeting a preset condition as a target, iteratively adjusting the pull current of the stack and the opening degree of the regulating valve, so as to control the fuel cell system in a low-idling mode. The application can realize low-power and high-efficiency operation of the fuel cell system and reduce energy loss.

The invention provides an engine idle speed control method and system, a vehicle and a medium, and belongs to the technical field of automobile control. When it is determined that a preset activation condition is met according to the information of the engine and the related data of the fan, idle speed increasing operation on the engine is executed; the idle speed increasing operation comprises the steps of determining a target idle speed based on the water outlet temperature of an engine and the current atmospheric pressure, and controlling the rotating speed of the engine to be adjusted to the target idle speed; and after the idle speed increasing operation is executed, when it is determined that a preset exit condition is met, idle speed increasing control over the engine is stopped. The starting noise of the vehicle is effectively reduced, and the driving comfort and safety are improved.

The invention relates to an engine idle speed control method and device, a vehicle and a computer storage medium, and belongs to the technical field of engine control. The engine idle speed control method comprises the steps that operation parameters of a generator are obtained, and the load coefficient of the generator is calculated based on the operation parameters; when the load coefficient is larger than a first load coefficient threshold value, the idle speed of the engine is adjusted to the highest rated idle speed; when the load coefficient is larger than a second load coefficient threshold value and smaller than or equal to the first load coefficient threshold value, a target idle speed is determined based on the priority of electric equipment, and the engine idle speed is adjusted to the target idle speed; and when a pre-closing signal of the electric equipment is received, the pre-falling rotating speed after the electric equipment is closed is calculated, and the idle speed of the engine is adjusted to the pre-falling rotating speed. Accurate control over the idle speed of the engine can be achieved, and the running stability of the engine is improved.

The invention discloses a range extender zero fuel idle speed control method and system. The method comprises the steps that a power battery SOC value, a power generation request state and a mechanical accessory work request state are obtained; if the SOC value of the power battery is not lower than the first electric quantity value, no power generation request exists and at least one mechanical accessory working request exists, a pure electric dragging mode is entered, the engine is controlled to stop oil injection, the target torque is zero, the generator drags the engine to rotate at the first target rotating speed not lower than the engine idle speed, and the corresponding mechanical accessory is driven to operate; therefore, pure electric driving of mechanical accessories is achieved under the condition that independent electric accessories are not additionally arranged. Wherein the first electric quantity value is the minimum electric quantity value meeting the requirement of entering a pure electric drag rotation mode; the first target rotating speed is a rotating speed value meeting the working requirement of the corresponding mechanical accessory.

The air inlet system of the engine comprises a throttle valve and an idle speed control valve, the idle speed control valve is provided with an air inlet and a plurality of air outlets, two air inlet pipes are communicated with the throttle valve, and the two air inlet pipes are communicated with air inlet channels of two air cylinders in a one-to-one correspondence mode. The plurality of air outlets are communicated with different positions of the air inlet pipe of the air cylinder with the short ignition time sequence; according to the air inlet system of the engine and the engine, the idle speed control valve is provided with the air outlets, the air outlets are all communicated with the air inlet pipe of the air cylinder with the short ignition time sequence, the air inlet amount can be distributed, and the probability that the cylinder body of the engine with the short ignition time sequence is on fire during idle speed is reduced.

The invention provides an engine idling working condition control method, device, storage medium and system, and relates to the technical field of engine control, the method comprises the steps that a feed-forward value of an engine is obtained, and the feed-forward value represents the average throttle opening degree required by the engine to maintain a preset target rotating speed under a preset idling working condition; under the condition that the feed-forward value is greater than a preset feed-forward value, determining a first condition that the engine enters a non-idle working condition according to the feed-forward value and the preset feed-forward value, and determining a first minimum value of an integral term output by a PID (Proportion Integration Differentiation) controller; and according to the first minimum value and a first condition that the engine enters the non-idle working condition, a first throttle opening target value is determined, and the throttle opening is controlled according to the first throttle opening target value. According to the method, the problem that in the prior art, when the air inlet pipe is under special operation conditions such as low-temperature icing and subsequent rapid deicing, an integral item of PID control can be reset in advance, and consequently idling control is not stable is solved.

The application discloses a kind of vehicle idle speed control method, device and hybrid vehicle.Therein, the method includes: based on the vehicle control information of target vehicle, determine that target vehicle enters idle speed control state;In idle speed control state, in response to the current battery capacity of target vehicle is higher than first threshold value, according to first control instruction, motor speed control is carried out to target vehicle, and in response to current battery capacity is lower than second threshold value, according to second control instruction, motor speed control and engine torque control are carried out to target vehicle;Wherein, first control instruction is determined by the first target idle speed corresponding to target vehicle in electric drive state, and second control instruction is determined by the second target idle speed and target idle torque corresponding to target vehicle in hybrid drive state.The present application solves the technical problem that the accuracy of the vehicle idle speed control method provided by the related art is low and the overall vehicle comfort is poor.

The invention discloses a throttle valve mechanism of a V-shaped engine, and relates to the technical field of motorcycle engines, the throttle valve mechanism comprises a first intake valve and a second intake valve, throttle valve sheets are rotatably arranged in ports of the first intake valve and the second intake valve, and the throttle valve sheets are used for controlling the opening degree of the first intake valve and the second intake valve; the first air inlet manifold and the second air inlet manifold communicate the first air inlet valve and the second air inlet valve with all the air cylinders, the ends, connected with the air cylinders, of the first air inlet manifold and the second air inlet manifold are bent in the direction away from each other, and inner cavities of the first air inlet manifold and the second air inlet manifold communicate with the idle speed control valve and the oil tank through a breather pipe and an oil rail pipe set correspondingly; the technical problems that an existing single-valve throttle valve cannot stably supply air to two air cylinders, so that the output efficiency of an engine is affected, and a double-valve throttle valve is large in transverse size and prone to interference with an engine cylinder head, so that the double-valve throttle valve is difficult to install are solved.

The present application belongs to the technical field of industrial equipment monitoring and control, and particularly relates to an industrial equipment monitoring and control method and system based on the Internet of Things, which comprises the following steps: obtaining continuous fast sequences and slow sequences of industrial equipment, calculating cross-correlation degrees between different physical property data by using sliding cross-gradient correlation logic, and extracting time lag compensation degrees conforming to physical energy conduction rules; subsequently, reconstructing phases of multi-source sensing sequences based on the time lag compensation degrees, and calculating a synchronous degradation modulus representing the overall damage state of the equipment by combining with maximum delay upper limit calculation; when the synchronous degradation modulus is greater than a tolerance threshold, calculating a control response strength, comparing it with a minimum safe idle speed control amount, extracting a maximum value, encoding it as a standard control instruction, and issuing it to reduce driving output. The present application effectively decouples the time lag effect of heterogeneous physical data, and solves the problems of monitoring false negatives and intervention impact caused by physical phase misalignment.

This invention discloses an engine idle speed control method based on dynamic idle speed deviation compensation, belonging to the field of engine control technology. The method comprises the following components: establishing an engine nonlinear model, setting an objective function, rolling optimization, and implementing control. By establishing an accurate engine nonlinear model, this invention comprehensively considers multiple subsystems of the engine, including the intake system, fuel injection system, combustion process, and power output. Combined with experimental data to fit parameters, it can accurately simulate the engine's operation under different working conditions. Simultaneously, by employing a rolling optimization strategy based on dynamic idle speed deviation compensation, it predicts the future state based on the current engine state at each sampling time and determines the optimal control sequence by calculating the minimum value of the objective function, continuously compensating for idle speed deviation. This control method significantly improves the accuracy of idle speed control, reduces speed fluctuations, and enhances the stability of engine operation.

This invention discloses a vehicle idling control method, device, equipment, and storage medium. The vehicle engine is compatible with multiple fuels. The method includes: if the vehicle enters an idling state, determining whether the engine's current fuel has changed; if so, determining the corresponding idling control parameters based on the current fuel type; determining the idling control torque based on the idling control parameters and a preset idling value; and controlling the engine to idle based on the idling control torque. In this embodiment, when the vehicle enters an idling state, the invention determines the corresponding idling control parameters based on the engine's fuel type, and determines the idling control torque based on the idling control parameters and a preset idling value to control the engine's idling operation. This allows for idling control of the engine using idling control parameters corresponding to the type of fuel used, improving the accuracy of idling control and thus enhancing vehicle stability.

This invention relates to the field of idling speed control, and more particularly to a detection and control system for automotive engine idling speed. The invention comprises a power unit, a detection device, and a central control processor. The central control processor generates an idling speed variation curve based on the engine speed value, determines the vehicle's idling state based on the curve, and adjusts the valve opening of the intake unit in real time based on the air flow rate in the first idling state. In the second idling state, it calculates intake characteristic parameters based on intake parameters, adjusts the valve opening of the intake unit based on these parameters, and determines whether to adjust the fuel injector's injection flow rate based on the change in oxygen concentration after adjusting the valve opening. This invention can automatically and adaptively adjust the valve opening of the intake unit or the injection flow rate of the fuel injector, improving the control of engine-related operating parameters when the engine idling speed is abnormal, and enhancing the reliability and efficiency of suppressing abnormal engine idling speed.

A military vehicle includes a frame, axle assemblies coupled with the frame that are configured to be driven to transport the military vehicle, an internal combustion engine configured to drive the axle assemblies, an electric motor configured to drive the axle assemblies, and processing circuitry. The processing circuitry is configured to operate the military vehicle according to different modes by generating control signals for the internal combustion engine and the electric motor and providing the control signals to the internal combustion engine and the electric motor. The modes include an economy mode, a summon mode, an environmentally reactive control mode, a weaponry status control mode, a boost mode, an escape mode, an optimized idle control mode, a transmission control mode, a supplemental electric vehicle mode, and a convoy mode.

The application provides a vehicle control method, an electronic device and a vehicle. When it is determined that there is an idle control switching request, the target motor torque limit is determined by obtaining the running information of the vehicle, and the motor limit torque of the generator is reduced from the current motor limit torque to the target motor limit torque. The idle control switching request is used to request switching from hybrid control unit idle control to engine control module idle control. At this time, reducing the upper limit value of the generator torque is equivalent to reducing the upper limit value of the engine load torque. The smaller value between the current engine request torque and the target motor limit torque is taken as the target engine request torque, so that the engine outputs less load torque. The engine load torque and speed fluctuation are small, which is beneficial to maintaining the stability of the engine idle control. Then, the idle control switching request is executed to switch from HCU idle control to ECM idle control.

Properly release the idle state of the work equipment. [Solution] The work machine includes a pressure sensor that detects the pressure of the hydraulic fluid from the hydraulic pump to the control valve, an operation sensor that detects operation of the operating member in a specific operating direction that moves the work device in the direction in which gravity acts, and a control device that performs idling control to rotate the prime mover at a predetermined idling speed. The control device releases the idling control when the pressure sensor detects a hydraulic fluid pressure of a predetermined value or higher, and when the operation sensor detects operation of the operating member in the specific operating direction.

The application discloses a kind of control method, device, equipment and medium of engine torque of coach vehicle, wherein the method comprises: obtaining the input voltage value of the engine controller of target vehicle, and determining control level according to input voltage value;Determine the control parameter group corresponding to control level based on control level, and determine target output torque according to control parameter group;Wherein, control parameter group includes target engine speed, reserved torque value and feedback control parameter;Based on target output torque and control parameter group, control the engine work of target vehicle.Based on the above technical solutions, by increasing the introduction of engine controller switch signal, improve idle speed control, and then improve the motor vehicle driving training process, students in the operation of manual transmission vehicle prone to because of learning initial stage unskilled cause engine speed drop even the situation of engine stall, and improve the stability of vehicle at idle, and then improve the driver training efficiency.

The application discloses a kind of fuel cell system idle speed control method, specifically including the following steps: the operating parameter of fuel cell system is collected;According to the operating parameter in S1, judge whether in idle speed operating condition;When system is in idle speed operating condition, according to the single piece voltage of electric pile, judge whether there is high potential attenuation risk;When determining that there is high potential attenuation risk, the flow rate of air into the electric pile is limited in the preset flow range, and the single piece voltage of electric pile is closed-loop controlled by adjusting backflow, so that the single piece voltage of electric pile is maintained in safety interval;While according to the backflow and single piece voltage feedback, the air flow into the electric pile is self-adapting fine tuning;By using the correlation logic of backflow and average single piece voltage, the reaction gas concentration is indirectly controlled by adjusting backflow, without monitoring oxygen concentration, the single piece voltage of electric pile can be stabilized in the safety interval of 0.75V-0.85V, effectively inhibit the electrochemical corrosion of high potential to carbon carrier, platinum-based catalyst, reduce the irreversible attenuation risk of electric pile.

The idle speed control device of the engine comprises a throttle valve and an idle speed control valve, the idle speed control valve is provided with an air inlet and two air outlets, two air inlet pipes are communicated with the throttle valve, the two air inlet pipes are communicated with air inlet channels of two air cylinders in a one-to-one correspondence mode, and the two air inlet pipes are communicated with air outlet channels of the two air cylinders in a one-to-one correspondence mode. Two air outlets of the idle speed control valve communicate with the two air inlet pipes in a one-to-one correspondence mode. According to the idle speed control device of the engine and the engine, the two air outlets of the idle speed control valve are communicated with the two air inlet pipes of the throttle valve in the one-to-one correspondence mode, reasonable distribution of air inflow of the two air cylinders in the idle speed state can be achieved, and the probability that the engine catches fire in the idle speed state is greatly reduced.

The invention provides a power take-off idle speed control device and method and a vehicle, and belongs to the technical field of power take-off control, and the system comprises a power take-off switch which responds to a first activation operation to generate a first power demand instruction; the PTO control switch responds to a second activation operation to generate a second power demand instruction; the ECU is in communication connection with the power take-off switch and the PTO control switch, and is configured to respond to the first power demand instruction and / or the second power demand instruction, determine a target idle speed mode based on obtained vehicle state parameters and preset arbitration logic, and control the power take-off switch according to a preset target idle speed corresponding to the target idle speed mode. The rotating speed of the engine is controlled through a PID algorithm; the target idling mode is a conventional idling mode, a power takeoff idling mode or a PTO idling mode. According to the invention, precise and safe control of idle speed in different power demand scenes is realized.

Procedure (300) comprising the following; Rules for the idling of an engine (22) coupled with an alternator (42) which provides electrical power to various electrical devices in a vehicle driven by the engine (22); a first mode of engine idle control which is active when a reduction or shutdown of electrical power applied to the selected electrical devices would be perceptible to an operator of the vehicle; During the first engine idle control mode, a permanent ignition timing value of the engine (22) is advanced in a retardation direction to an offset retarded value, and if the engine speed is lower than desired, the ignition timing is advanced before the offset retarded value, and if the engine speed is higher than desired, the ignition timing is retarded beyond the offset retarded value; a second mode of engine idle control, which is active when a reduction or shutdown of electrical power applied to the selected electrical devices would not be perceptible to a vehicle operator; and During the second idle control mode, the offset delayed value is removed and electrical power for the selected devices is deactivated or reduced when the engine speed is lower than desired, and the ignition timing is delayed beyond the permanent state ignition timing value when the engine speed is higher than desired.

This application provides a control method, device, storage medium, and system for engine idling conditions, relating to the field of engine control technology. The method includes: acquiring a feedforward value for the engine, where the feedforward value characterizes the average throttle opening required to maintain a preset target speed under a preset idling condition; if the feedforward value is greater than a preset feedforward value, determining a first condition for the engine to enter a non-idling condition and a first minimum value of the integral term output by the PID controller based on the feedforward value and the preset feedforward value; determining a first target value of the throttle opening based on the first minimum value and the first condition for the engine to enter a non-idling condition, and controlling the throttle opening based on the first target value of the throttle opening. This method solves the problem in the prior art where, under special operating conditions such as intake manifold icing due to low temperatures and subsequent rapid de-icing, the integral term of the PID control is prematurely reset, leading to unstable idling control.

The application provides a vehicle cooling control method and a vehicle, and belongs to the technical field of vehicles. The vehicle cooling control method comprises the following steps: acquiring a working parameter of an air conditioning system when an engine of the vehicle is in an idle speed working condition; judging whether the working parameter meets a first preset condition; and adjusting an idle speed of the engine to make a rotating speed of fan blades adapt to a cooling demand of the air conditioning system when the working parameter meets the first preset condition. The application associates the regulation and control of the idle speed of the engine with the working parameter of the air conditioning system, evaluates the cooling capacity of the air conditioning system through the working parameter, thereby realizing accurate judgment of the cooling capacity of the air conditioning system, ensuring that the idle speed of the engine is adapted to the cooling capacity of the air conditioning system, and finally realizing the effect of improving the accuracy of the idle speed control of the engine.

The application provides an engine idle speed control method and related equipment. When it is determined that a vehicle is in an idle control state, the current idle speed and the current driving mode of the engine of the vehicle are obtained, and the operating parameters of the vehicle corresponding to the current driving mode are obtained. The target speed is determined based on the operating parameters, so that the target speed can change with the change of the operating parameters of the vehicle. In the idle control state, the current idle speed of the engine of the vehicle is increased to the target speed, so that the engine of the vehicle operates at the target speed. By increasing the current idle speed to the target speed, the engine speed of the vehicle when it is about to change to a non-idle control state and is still in the idle control state can be close to the speed in the non-idle control state, so that the idle control state can better connect with the non-idle control state, the engine speed jump when the idle control state connects with the non-idle control state can be reduced, and the driving experience of the user is ensured.

The invention relates to the technical field of commercial vehicles, in particular to an idling self-adaption and multifunctional switch regulation control method for a commercial vehicle, which comprises the following steps that: a whole vehicle ECU (Electronic Control Unit) judges whether to enter an idling control condition or not according to various current signals of the vehicle and a multifunctional switch signal; and judging whether to enter a self-adaptive idle speed control mode or a manual idle speed control mode according to conditions. If the condition of the self-adaptive idle speed control mode is met, the whole vehicle ECU obtains a corresponding engine target idle speed value according to the activation condition at the moment and outputs an idle speed request signal to the engine ECU, and the engine ECU responds to the idle speed request and adjusts the engine idle speed to the engine target idle speed value; if the condition of the manual idle speed control mode is met, a corresponding idle speed request signal is output to an engine ECU according to an engine target idle speed value manually adjusted by a driver, and the engine ECU responds to the idle speed request signal and adjusts the engine idle speed to the engine target idle speed.

The present application relates to the technical field of idle control, and discloses an engine electro-hydraulic control automatic idle system, method and engineering vehicle.The first and second pressure switches are connected with a hydraulic system, the first pressure switch is used for controlling the conduction of the first pressure oil port and the third working oil port of a three-position four-way electromagnetic valve, the second pressure switch is used for controlling the conduction of the first pressure oil port and the fourth working oil port of the three-position four-way electromagnetic valve, the hydraulic system supplies oil to the first oil cylinder through the first pressure oil port and the third working oil port, a piston in the first oil cylinder pushes the engine throttle to move to an idle position, and the discharged oil enters an oil storage oil cylinder through a cavity opening, the hydraulic system supplies oil to the oil storage oil cylinder through the first pressure oil port and the fourth working oil port, so that the piston in the oil storage oil cylinder moves, and the received oil discharged from the first oil cylinder is returned to the first oil cylinder, thereby realizing the quantitative control of the in-out oil in the oil cylinder cavity in the electro-hydraulic combination mode, and realizing the consistency of the piston to and fro position.