796results about "Electric motor starters" patented technology

The invention relates to the technical field of extended-range electric vehicle control, and discloses an engine starting control method and system for an extended-range electric vehicle, and the method comprises the following steps: obtaining the operation information of the extended-range electric vehicle, the operation information comprises the actual temperature of an engine, the actual rotating speed of a range extender, the state of charge (SOC) of a power battery and the maximum dischargeable power; when the starting request mark position of the engine is set, the generator is controlled to enter a torque control mode, and the engine enters a starting mode; and based on the actual temperature of the engine and the actual rotating speed of the range extender, the pre-control torque of the generator is activated through the enabling flag bit. By accurately controlling the rotating speed and the torque of the generator, smooth starting of the engine is achieved, the requirement for starting the engine in various vehicle using scenes is met, meanwhile, the actual temperature of the engine, the SOC of a power battery and the like are considered, the target rotating speed of the started engine and the starting torque of the generator are flexibly controlled, and the starting efficiency is improved. The starting performance of the engine is improved.

A computer system has processing circuitry to selectively operate the powertrain system in at least a freewheeling mode, in which an output shaft of the engine is non-rotating, and the engine is disconnected from the one or more drive wheels. The processing circuitry is further configured to: determine an opportunity for the freewheeling mode by predicting a feasibility of restarting the engine along an intended route by using a controllable clutch. Predicting the feasibility of restarting the engine by using the controllable clutch includes determining fulfillment of any one of a first restarting condition and a second restarting condition. Determining fulfillment of the first restarting condition includes comparing current total weight of the vehicle with a threshold value indicative of a minimum total weight for avoiding excessive braking of the vehicle during restarting at a high friction road condition with a given total gear ratio. Determining fulfillment of the second restarting condition includes comparing a current drive axle load with a corresponding threshold value indicative of a minimum drive axle load on a drive axle for avoiding excessive wheel slip during restarting at a low friction road condition with a given total gear ratio. The powertrain system is controlled into the freewheeling mode upon the fulfillment of any one of the first restarting condition and the second restarting condition.

The invention provides an energy management strategy verification platform for a plug-in series hybrid power ship propulsion system. The energy management strategy verification platform comprises a power source module, a power output module, a load simulation module, a transmission module, a sensor measurement module and a control system module, the power source module outputs electric energy through multi-energy cooperation; the power output module generates propelling power according to the electric energy; the load simulation module simulates load characteristics according to the propulsion power; the transmission module is connected with the power source module and the power output module as well as the power output module and the load simulation module; the sensor measurement module collects operation parameters of the verification platform; and the control system module executes an energy management strategy according to the operation parameters and outputs a control instruction. A graphical programming environment is constructed by adopting a modeling code automatic generation system, and a strategy rapid prototype development verification closed loop is formed in combination with a range extender intelligent start-stop control strategy and a multi-mode power generation control strategy.

A battery booster for jumpstarting a vehicle having an external battery. The battery booster may include a processor, a set of terminal connectors, a power supply, and a power-management circuit. The set of terminal connectors may be configured to couple with the external battery or an engine that is electrically coupled with the external battery. The power supply may include a lithium battery configured to supply a starting current to jump start an engine. The external battery may have a first nominal voltage, while the lithium battery may have a second nominal voltage that is greater than the first nominal voltage. The power-management circuit operatively coupled with the at least one processor, wherein the at least one processor is configured to transfer power selectively between the external battery and the power supply. The processor is configured to perform a pre-charge function and / or a back-feed function via the power-management circuit, which may employ a pulse width modulation (PWM) driver.

The invention relates to a starting and power generation integrated control method based on externally distributed bosses of a permanent magnet motor, and the method comprises the following steps: determining the initial position of a rotor of the permanent magnet motor relative to a stator through a pulse voltage injection method, and applying a drive signal to a stator coil, so that the motor reaches the rotating speed at which an ignition trigger can stably detect the signal; an ignition trigger is used for obtaining boss signals and conducting shaping processing, and the specific position of the rotor relative to the stator is determined; the stator coil is electrified by utilizing the relative position of the rotor and the stator, the motor is driven to rotate, and flux-weakening voltage regulation control is carried out; and when the power-assisted condition is met, a stator coil corresponding to the permanent magnet motor is electrified by utilizing the relative position of the rotor and the stator, so that switching control from power generation voltage regulation to power-assisted driving of the motor is realized, and power-assisted driving operation is executed. According to the control method, the boss on the rotor is used for starting and power generation voltage regulation control of the permanent magnet motor, and the method is simple and easy to implement.

The present invention relates to a system and a method for controlling a vehicle. In accordance with an aspect of the present invention, there is a system for controlling a vehicle comprising: the vehicle comprising a vehicle control unit operable to detect a user's input to control at least one of a door and a start of an engine, and control the at least one of the door and the start of the engine; and a mobile device comprising a sensor capable of detecting a position and a motion pattern of the mobile device, characterised in that: when the vehicle control unit detects the user's input, the vehicle control unit is operable to collect a latest position of the mobile device and the motion pattern of the mobile device from the sensor, determine a current position of the mobile device with respect to the vehicle based on the collected information, and decide whether to control the at least one of the door and the start of the engine.

This application relates to an engine starting method, apparatus, storage medium, and program product, and pertains to the automotive field. The method is executed by a vehicle control unit in a hybrid vehicle, and includes: when the vehicle's engine is not started and the time difference is greater than a specified time difference, acquiring current engine fuel tank level information, total mileage information, and vehicle speed information; when the above three pieces of information meet their respective specified conditions, controlling the engine to enter a self-maintenance mode; when the engine coolant temperature is greater than a specified temperature, controlling the engine to exit the self-maintenance mode; and when at least one of the engine fuel tank level and vehicle speed information does not meet its corresponding specified condition, but the total mileage information meets its corresponding specified condition, displaying a first warning message on the vehicle's instrument panel. This solution allows the hybrid vehicle's engine to enter a self-maintenance mode without starting, thereby extending the engine's service life.

The invention provides a range extender control method and system, a storage medium and a vehicle, and belongs to the technical field of vehicle range extenders, and the range extender control method comprises the steps that in response to an instruction indicating that starting of an engine fails, the output rotating speed of the engine when starting fails is obtained; target parameters are determined based on the output rotating speed of the engine when starting fails; based on the target parameter, determining a working condition parameter when the engine is restarted and / or a working condition parameter when the generator is restarted; and restarting the engine based on the working condition parameters when the engine is restarted and / or the working condition parameters when the generator is restarted. According to the method and the device, the working condition parameters of the engine or the generator are adjusted in a targeted manner according to the target parameters corresponding to the environmental reasons, so that the working condition parameters of the engine during restarting or the working condition parameters of the generator during restarting of the engine adapt to the environment, and the success rate of engine starting is improved.

The invention relates to a control method based on low-temperature cold start of a heuristic integrated heavy oil engine, and relates to the field of heuristic integrated heavy oil engines. According to the technical scheme, the preheating plug in the cylinder is combined with the air inlet heating grid, synchronous control is achieved through the same relay, the electric energy requirements of synchronous work and dragging and preheating are met by means of sufficient battery capacity, and the device can be adapted to the ultra-low temperature of-40 DEG C or below and the plateau environment of 4700 m or above; three starting attempts are supported by single-time power-on through intelligent preheating control logic, the pre-preheating and heating-while-dragging processes are executed each time, fault information is automatically uploaded after starting fails, frequent power-off is not needed, and the starting efficiency is improved. And moreover, through an intermittent post-preheating and intake synchronous heating strategy, the combustion stability in the cylinder is effectively improved, the rotating speed fluctuation time is shortened, and mechanical damage caused by flameout and unstable idling after starting is avoided. In addition, the dragging rotating speed control based on the torque can prevent the problem of engine damage caused by accidental detonation after multiple starting failures.

The invention provides an engine starting control method and device, a range extender and a vehicle, and the method comprises the steps: determining a target starting mode sequence of a range-extended engine based on the current wear degree of the range-extended engine when the range-extended engine meets a starting condition and the current wear degree of the range-extended engine is greater than or equal to a preset wear degree; the target starting mode sequence comprises an execution sequence of each starting mode in a plurality of starting modes of the extended-range engine, and the extended-range engine is started in sequence according to the starting modes in the target starting mode sequence until the extended-range engine is started successfully or execution of the target starting mode sequence is finished. And the starting success rate of the extended-range engine can be effectively improved.

An engine starting method, comprising: when a condition of starting an engine at a low voltage is met, controlling a low-voltage storage battery to supply power to a driving motor, so as to enable the driving motor to store energy; and when a preset condition is met, controlling the driving motor to release electric energy to a starting generator, so as to enable the starting generator to operate to start the engine. Also disclosed are an engine starting system, a controller, a computer-readable storage medium and a hybrid electric vehicle.

The invention discloses a fuel injection method and device of an engine, a vehicle and a storage medium, a cylinder cover of the engine is provided with a fuel injector, a glow plug is arranged below an air inlet channel, the fuel injector is configured to inject fuel into a combustion chamber of the engine, and the glow plug is configured to heat the combustion chamber of the engine. The method comprises the steps that under the condition that an engine starting instruction is received, the cooling water temperature of an engine is obtained; under the condition that the temperature of the cooling water is smaller than or equal to a first preset temperature threshold value, the glow plug is controlled for heating; and under the condition that the temperature of the glow plug reaches the second preset temperature threshold value, the motor of the vehicle is controlled to drag the engine to rotate at the preset rotating speed, and the fuel injector is controlled to conduct single-time injection into the combustion chamber in the later period of the compression stroke. According to the fuel injection method, the problem that single-fuel cold start of the methanol engine is difficult in cold weather can be solved, the success rate of cold start of the engine is increased, and the cost can be reduced.

To provide a control device of a hybrid vehicle that can avoid a situation where an engine cannot be started after the vehicle starts travelling.SOLUTION: A control device of a hybrid vehicle comprises: an engine 2; a high-voltage system that drives a motor generator 3 for driving; and an activation control part 101 that executes an engine start-up determination of determining whether the engine 2 is in a state where start-up of the engine is highly likely to be impossible or not, on the basis of a state of a hybrid vehicle 1, executes HEV activation processing for starting the engine 2 to activate the high-voltage system, when a determined result of the start-up of the engine shows that the engine 2 is in the state where start-up of the engine is highly likely to be impossible, and executes EV activation processing for activating the high-voltage system while stopping the engine 2, when the determined result of the start-up of the engine shows that the engine 2 is not in the state where start-up of the engine is highly likely to be impossible.SELECTED DRAWING: Figure 1

The invention relates to a vehicle starting control method and device and a vehicle, and is applied to the technical field of hybrid power vehicles. The vehicle starting control method comprises the steps that in response to the situation that the vehicle meets the engine starting requirement, running state information of the vehicle is obtained; the state of the vehicle is determined based on the running state information of the vehicle, under the condition that the state of the vehicle is in a preset state, a compensation torque value used for braking wheels is determined, and the preset state is used for representing that the vehicle is in a non-driving state; braking operation is carried out on the wheels of the vehicle based on the chassis system and the compensation torque value so as to carry out engine starting control, according to the embodiment of the invention, the wheels can be braked by determining the compensation torque value used for braking the wheels under the condition that the vehicle meets the engine starting requirement and the vehicle is in the preset state, and the braking efficiency of the vehicle is improved. Therefore, the problem that the vehicle moves or shakes in the starting process of the engine is solved.

To make oil surely interpose between a rotor housing and a rotor even in cold starting.SOLUTION: An engine system 12 comprises: a rotary engine 14 having a rotor housing 16, side housings 18, and a rotor 20 that is housed in a rotor accommodation chamber surrounded by the rotor housing and the side housings and forms three working chambers 24, in which the rotary engine is driven by a starter generator 10 at the time of starting to increase in rotation speed, and drives the starter generator during operation; a water temperature sensor 64 for detecting a cooling water temperature of the rotary engine; and a PCM 84 and an SGCM 86, which are configured to control rotation speed of the starter generator at the time of engine starting. The PCM 84 and the SGCM 86 control the starter generator such that when the cooling water temperature at the time of rotary engine starting is relatively low, the rate of increase in engine rotation speed becomes low as compared with that when the cooling water temperature is relatively high.SELECTED DRAWING: Figure 7

The invention provides a two-stroke piston engine integrated controller with high-reliability position estimation, which is characterized in that a motor Hall signal acquisition function is added on the basis of an engine crankshaft position signal acquisition circuit of a conventional engine control module. A crankshaft position signal redundancy switching logic of the two-stroke piston engine is designed based on an improved circuit, a groove pole position behind a top dead center is positioned in the operation process of the engine, synchronous correction of a Hall signal and a crankshaft position signal is achieved, and a conversion relation between a motor Hall signal and the crankshaft position signal of the engine is established. When the crankshaft position signal is abnormal, the engine timing control method based on the motor Hall signal can be automatically switched. According to the invention, the redundancy switching of the position signal of the two-stroke piston engine can be realized, so that the piston engine can still complete a set task without flameout when the crankshaft position signal is abnormal, and the reliability of a control system is greatly improved.

A vehicle includes an engine, an intake manifold, a starter motor, a battery, and a control apparatus. The intake manifold is coupled to the engine. The starter motor is configured to start up the engine. The battery is configured to drive the starter motor. The control apparatus includes one or more processors, and one or more memories coupled to the one or more processors. The one or more processors are configured to execute idle reduction control, and execute, during execution of the idle reduction control and before cancelling the idle reduction control, adjustment control of adjusting an internal pressure of the intake manifold and causing the internal pressure of the intake manifold to be lower as a voltage of the battery is lower.

A control device (125) for controlling an engine (102) of a vehicle (103) is disclosed together with a control system (101) comprising a control device (125), a vehicle (103), and a method (200, 500). The control device (125) comprises a control unit configured to cause the power generation of the engine (102) to shut down during movement of the vehicle (103) depending on at least one criterion being met, and to cause the power generation of the engine (102) to restart depending on at least one input signal indicating a need to restart the engine (102) to provide a required power output.The control unit is also configured to receive a target motor speed value that depends on a current drive shaft speed, and causes the motor (102) to maintain a speed not exceeding the target motor speed, which depends on the target motor speed value, for a period after receiving the at least one input signal and until a further signal is received indicating that the motor (102) has been reconnected to a drive shaft (104). The control unit is arranged to allow the motor speed to exceed the target motor speed after receiving the further signal.

The application is suitable for the technical field of batteries, and provides a starting battery, a discharge control method of the starting battery, an electronic device and a computer program product. The capacity of the starting battery is divided into multiple capacity regions, different capacity regions correspond to different working condition requirements, and the charge and discharge control method of the starting battery comprises the following steps: determining a target capacity region according to a current working condition requirement; and performing a charge and discharge operation corresponding to the current working condition requirement by using the target capacity region. In the use process of the starting battery, the charge and discharge operation can be performed by using the target capacity region corresponding to the working condition requirement, so that the overcharging and overdischarging of the starting battery are effectively reduced, and the influence on the service life of the starting battery is reduced.

A system for handling surplus methane in a fuel supply system for an internal combustion engine (ICE) system, the system comprising: an inert gas supply system configured to be in fluid communication with the fuel supply system and further configured to supply inert gas to an inert gas supply conduit position of the fuel supply system; a burner configured to be in fluid communication with the fuel supply system via a controllable valve device, the controllable valve device being disposed downstream the fuel supply conduit position; and a controller comprising processing circuitry configured to: predict an upcoming ICE non-operational time period; in response to the predicted ICE non-operational time period, determine to inject inert gas to the inert gas supply conduit position so as to flush the fuel supply system; and control the controllable valve device to direct any flushed-out methane to the burner.

The invention relates to the technical field of engines, in particular to a cold start control method, device and equipment of an engine and a medium. The method comprises the steps that when an engine is in a power-on state, the starter is started, and the water temperature value of the engine is obtained; if the water temperature value of the engine is smaller than the preset water temperature threshold value, starting parameter values of starting parameters of the engine in the current operation environment are obtained; determining a reference dragging duration corresponding to the starting parameter value based on a preset mapping relation between the starting parameter value and the dragging duration; determining a target dragging duration according to a reference dragging duration corresponding to the starting parameter value; the dragging duration of the starter is monitored, when the dragging duration of the starter reaches the target dragging duration, the oil injector is controlled to inject oil into the air cylinder, and the state in the air cylinder is monitored; and when compression ignition occurs in the air cylinder, the engine is controlled to enter a running state, so that cold start control is conducted on the engine in the low-temperature and plateau environment, and soot particles accumulated in the DPF are reduced.

The invention provides a method for starting an engine, electronic equipment, a vehicle and a storage medium, the method is applied to the technical field of hybrid power control, and the method comprises the steps that if it is determined that the vehicle needs to start the engine, the engine is started by controlling the torque of a first motor; in the process of starting the engine based on the first motor, the target torque of the first motor is determined; determining a compensation torque based on the target torque, and correcting the compensation torque to obtain a corrected compensation torque; and based on the corrected compensation torque, a second motor of the vehicle is controlled so that the second motor can conduct torque compensation. According to the method, rushing of the vehicle caused when the engine of the vehicle is started can be reduced, the stability of the vehicle is improved, and the driving experience of a user is improved.

This application discloses a method and system for controlling range extender starting and power generation in plateau environments. The method includes: collecting engine coolant temperature and altitude values, setting the engine starting torque and drag time; after the drag time expires, determining the engine's autonomous idle start; if the idle is determined to be successful, entering engine warm-up mode; otherwise, starting and dragging are performed again; in the warm-up state, inputting the engine coolant temperature sample value, and outputting the engine operating speed value and generator output power value according to a preset temperature-speed-power three-dimensional table; after the warm-up ends, when entering the power generation phase, performing closed-loop power output and power generation control according to the power command issued by the vehicle. This application can achieve smooth engine starting and stable power generation in plateau environments.

The invention discloses an overheating protection function. The overheating protection function comprises the following steps that a protection module is powered on and initialized; recording the initial voltage, and starting timing for continuous working time; the temperature acquisition module judges whether the current temperature of the temperature acquisition point is lower than a preset power-on threshold value or not; if not, the relay is disconnected, and the starter stops working; if yes, the protector controls the relay to be switched on, and the electromagnetic switch is turned on; in the continuous power-on process of the relay, the temperature acquisition module continuously monitors the current temperature of the temperature acquisition point; the protector parallelly executes the following judgment: (1) whether the continuous working time reaches a preset delay protection threshold value or not; (2) judging whether the current temperature reaches or exceeds a preset protection threshold value; and if any one of (1) and (2) is established, the protector controls the relay to be powered off so as to stop the starter from working. Through cooperation of the protector and the temperature sensor, dual and intelligent monitoring and protection of the temperature and the working time of the starter are achieved.

Methods, apparatus, systems, and articles of manufacture are disclosed to monitor engine starting systems. An example apparatus includes processor circuitry to execute instructions to measure engine starting system data from a machine; determine a total starting crank time and an ambient air temperature for the machine from the engine starting system data; compare the engine starting system data using a machine learning model; model a relationship between the ambient air temperature and the total starting crank time; generate a score of an engine starting system from the machine learning model; determine comparison result from the relationship between the ambient air temperature and the total starting crank time; and display an alert to a user based on at least one of the score of the engine starting system or the comparison result from the relationship between the ambient air temperature and the total starting crank time.

To obtain maximum performance and belt longevity, it is important that the belt is properly tensioned. In some scenarios such as hybrid vehicles where the belt is going through large variations in drive torque due to varying Belt Starter Generator (BSG) parameters due to regeneration and the like, a dynamic pivot may optimize belt tension for a variety of engine modes. In some embodiments a dynamic pivot dual arm tensioner may include a center arm having a first tensioning pulley journaled to the center arm and engageable with a mounting surface, such as an engine block or accessory bracket, through a mounting axis; a side arm having a second tensioning pulley journaled to the side arm and coupled to the center arm; a dynamic pivot around which the tensioner dynamically rotates; and the dynamic pivot journaled to the center arm.

The invention provides a starter structure with overtemperature protection, which comprises a brush holder bottom plate, a plurality of brush boxes mounted on the brush holder bottom plate and a rear cover covering the brush boxes, and electric brushes are mounted in the brush boxes. An overtemperature protection assembly is installed on any brush box, the side, away from the brush box, of the brush carrier bottom plate or between any brush box and the brush carrier bottom plate, and the overtemperature protection assembly is in control connection with a starter. The overtemperature protection assembly comprises a temperature switch, and the temperature sensing surface of the temperature switch is close to or attached to the electric brush; when the temperature switch detects that the temperature of the electric brush reaches a preset first threshold value, the temperature switch controls the starter to stop working; according to the starter structure with the overtemperature protection function, the defect that an existing starter is prone to being damaged due to the fact that the existing starter is lack of the overtemperature protection function is overcome.

The invention relates to a control method implemented in a vehicle comprising an alternator-starter and a starting device, both coupled to a combustion engine respectively via a belt and a coupling device when the coupling device has been placed in a coupled state. This method comprises a step (10-40) wherein the coupling device is placed in its coupled state, then a first torque is supplied by the alternator-starter to the belt in order to pre-tension the belt, and a second torque is supplied by the starting device to the coupling device in order to overcome coupling play. The combustion engine is then started up by simultaneously supplying third and fourth torques, which are respectively greater than the first and second torques, from the alternator-starter and starting device.