2020results 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.

The invention relates to a super capacitor control circuit and method for intelligently recognizing a vehicle starting mode, the control circuit comprises a main control module, a super capacitor bank, a charging control module, a discharging control module and an environment information sampling module, the power supply output end of the charging control module is connected with the power supply input end of the super capacitor bank; the power output end of the super capacitor bank is connected with the power input end of the discharging control module, the power output end of the discharging control module is connected with the power output end of the storage battery in parallel, and the signal output end of the environment information sampling module is connected with the third sampling signal input end of the main control module. Accurate charging and discharging management of the super capacitor is realized through dynamic signal control of the main control module and a synergistic effect of the plurality of sampling modules. By adjusting the magnitude of the output current of the super capacitor bank, the system effectively adapts to the requirements of different environments and working conditions, the adaptability of the system under extreme conditions such as low temperature or frequent start and stop is improved, and the system has relatively high intelligent adjustment capability.

A system includes a controller communicably coupled to a hydrogen fueled internal combustion engine. The controller includes at least one processor coupled to at least one memory device storing instructions that, when executed by the at least one processor, cause the controller to perform operations. The operations include receiving an engine shutdown request and responsive to receiving the engine shutdown request, executing an engine shutdown procedure including causing the engine to continue to rotate for at least a predetermined number of rotations or at least a predetermined time period.

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.

A diesel generator starting system comprises a charger (200) which is provided with a positive electrode interface (210) and a negative electrode interface (220); the diesel generator starting system further comprises a super capacitor (400). The super capacitor is provided with a positive terminal (410), a negative terminal (420) and a starting terminal (430); the positive electrode interface of the charger is connected with the positive electrode terminal of the super capacitor; a cathode interface of the charger is connected with a cathode terminal of the super capacitor and is used for being connected with a cathode of a starting interface of a diesel generator (100); the starting terminal of the super capacitor is used for being connected with the positive electrode of the starting interface of the diesel generator. According to the diesel generator starting system, by means of the advantages of high power, long service life, no maintenance and low temperature resistance of the super capacitor, reliable and stable starting of the diesel generator is guaranteed.

Methods and systems for starting an engine of a hybrid vehicle are provided. Systems and methods for operating an internal combustion engine coupled to a power split transmission are described. In one example, the internal combustion engine is started via generator rotation, and a torque output of the generator is adjusted to reduce noise that may be generated by completing gear clearance crossing.

There is provided an internal combustion engine including: a crankshaft; a first cylinder and a second cylinder; and a decompression device configured to depressurize the first cylinder and the second cylinder at a time when the internal combustion engine starts to rotationally derive relative to the first cylinder and the second cylinder at a time after the internal combustion engine starts to rotationally drive. The decompression device is configured such that, at the time when the internal combustion engine starts to rotationally derive, a decompression amount in the second cylinder is greater than a decompression amount in the first cylinder.

A system includes a computer including a processor and a memory storing instructions executable by the processor to determine to disable a remote start request in a vehicle based on a current state of the vehicle. In response to disabling the remote start request, the instructions include to output a notification. Then, upon receiving a user input to override the disabling of the remote start request, the instructions include to actuate one or more vehicle components as specified by the remote start request.

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.

The invention relates to an electric starting chain saw, which at least solves the problem that the electric starting mechanism of the existing chain saw on the market is not easy to use, and comprises a chain saw main body, the chain saw main body is provided with a chain saw mechanism and an engine unit for providing power for the chain saw mechanism, and the power output end of the engine unit is in transmission connection with the chain saw mechanism. A magneto-electric starting mechanism is arranged on the chain saw body and comprises an ignition assembly used for igniting the engine unit and a driving motor matched with the ignition assembly.

The invention discloses a vehicle, an engine control method and device of the vehicle, a storage medium and a whole vehicle controller, the vehicle comprises a range extender, an engine is applied to the range extender, the range extender further comprises a generator, and the starting control method of the vehicle engine comprises the steps that when the vehicle meets the range extending requirement, the starting target rotating speed and the ignition rotating speed of the engine are obtained; and controlling the generator to drag the engine to perform multi-stage acceleration according to the starting target rotating speed and the ignition rotating speed until the rotating speed of the engine is the starting target rotating speed. Therefore, the rotating speed of the engine can quickly reach the ignition rotating speed and slowly rise to the highest starting rotating speed, so that the starting efficiency is improved, the starting smoothness is improved, the noise, vibration and sound vibration roughness performance of the whole vehicle is effectively improved, and more comfortable and cheerful driving experience is brought to a driver.

The invention discloses a gas generator frequent starting system without a starting motor and an implementation method, and belongs to the technical field of generator control. The gas generator frequent starting system comprises a charging and discharging circuit, a charging control circuit and a discharging control circuit; the storage battery is connected with an inverter and a plurality of super capacitors through a normally open contact of the relay, each super capacitor is connected with a coil of a solid-state relay, the storage battery is further connected with a rectification voltage stabilizer, the inverter and the rectification voltage stabilizer are connected with a coil of a gas generator, the coil of the gas generator is further connected with a coil KMC-0 of an 8 # relay, and the coil KMC-0 of the 8 # relay is connected with the storage battery. A starting mode of directly driving a generator coil is adopted, an external starting motor is not needed, and therefore the problems that a conventional starter slips, cannot be separated and is abraded are solved.

The utility model discloses a power supply control circuit of an electronic fuel injection system of an engine and a general engine, the power supply control circuit comprises a voltage regulator, a power supply control module, a battery module, a switch module and a power supply port, the voltage output end of a magneto is connected with the voltage input end of the voltage regulator; the voltage output end of the voltage regulator, the switch module and the negative electrode of the battery module are connected with the power supply control module, the voltage output end of the voltage regulator and the positive electrode of the battery module are connected with the power supply port, and the power supply port is used for being connected with the power input end of the electronic fuel injection system so as to supply power to the electronic fuel injection system. When the magnetor outputs voltage, the power supply control module controls the battery module to supply power to the electronic fuel injection system, when the magnetor outputs voltage, the power supply control module controls the battery module to be disconnected, power is directly supplied to the electronic fuel injection system through the magnetor, and the magnetor does not charge the battery module. The starting performance of the manual starting general electronic fuel injection engine can be effectively improved with low cost.

The invention relates to the field of hybrid power mine cars, and discloses a starting control method and system for a range extender of a hybrid power mine car, and the method comprises the steps: obtaining the battery state data, environment temperature and load data of the mine car in real time; based on a preset mine car state analysis strategy, according to the real-time battery state data, the environment temperature and the load data, the health state of the battery, the interval of the environment temperature and the load condition of the mine car are determined; based on a preset threshold value adjusting strategy, correspondingly adjusting an SOC starting threshold value of the mine car according to the health state of the battery, the interval of the environment temperature and the load condition; and real-time SOC data of the battery is obtained, if the real-time SOC data is not smaller than the SOC starting threshold value, starting is conducted in the mode that the generator reversely drags the engine, and if the real-time SOC data is smaller than the SOC starting threshold value, starting is conducted through the starting motor. The SOC starting threshold value is dynamically adjusted by monitoring the battery state, the environment temperature and the load information of the mine car in real time, and therefore the starting process is optimized.

A motorized vehicle includes a multi-speed transmission having a plurality of forward gears configured to be selectively engaged to drive the motorized vehicle, an internal combustion engine selectively coupled to the transmission, and a reverse drive system selectively coupled to the transmission to provide torque to drive the motorized vehicle in a reverse direction. The reverse drive system includes an electric motor and a reverse drive gear train configured to be selectively coupled to the transmission. The transmission includes a neutral position in which the internal combustion engine is decoupled from the transmission and freely rotatable relative to the transmission. The reverse drive gear train is configured to be operably coupled to the transmission when the transmission is in the neutral position, such that the reverse drive system is operable to drive the motorized vehicle in the reverse direction without interference from the internal combustion engine.

A driveline including a motor / generator configured to receive power from an engine and output power to a tractive element, an accessory drive configured to receive power from the engine and output power to an accessory, and an energy storage system including a battery, the energy storage system electrically coupled to the motor / generator and the accessory drive. The driveline is operable in a charge mode with the motor / generator and the accessory drive providing electrical power to the energy storage system. The driveline is operable in a silent mobility mode with the energy storage system providing electrical power to the motor / generator and the accessory drive to operate the military vehicle.

A long-term high-power battery system with intelligent management includes a battery cell, and a battery management system including a secondary control system, a low-power switching element, a high-capacity relay and a battery cell voltage balancing system. When the secondary control system detects a high current load generated by the vehicle startup, the low-power switching element first interrupts the high load connected to the battery management system, and immediately starts the high-capacity relay, so that the large current passes through the high-capacity relay to provide the large current required by the vehicle load equipment. Through the battery cell voltage balancing system, the voltage difference between each battery cell is effectively controlled.

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 an engine starting control method and device, a vehicle and a storage medium. According to the engine starting control method, in the engine starting process, if the water temperature of an engine is larger than or equal to the preset temperature for optimizing starting control, the opening degree of a throttle valve is adjusted to the first opening degree; the method comprises the following steps of: controlling a throttle valve to rotate at a first opening degree, dragging an engine to run to a target rotating speed by a generator at the first opening degree, controlling the throttle valve opening degree to be reduced from the first opening degree to a second opening degree when the target rotating speed is reached, and controlling the engine to inject oil and ignite for starting at the second opening degree, and reducing air inlet resistance by performing dynamic smooth control on the throttle valve opening degree in the starting process. And therefore, the rotating speed fluctuation problem of the engine in the starting stage is reduced, and the driving experience of a user is improved.

Various implementations disclosed herein include devices, systems, and methods for implementing a starter system that utilizes multiple starter solenoids physically isolated from each other. For example, the system may include a first solenoid mechanically connected to a starter motor. The first solenoid may be configured to receive a first starting current signal and mechanically couple the starter motor with an engine. The system may further include a second solenoid mounted within an explosion proof structure physically isolating the second solenoid from the first solenoid and the starter motor. The system may further include a non-incendive circuit mounted within the explosion proof structure. The non-incendive circuit may be configured to indicate that the starter motor is coupled with the engine and signal the second solenoid for activation to supply a cranking current signal to windings of the starter motor for operation.

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 rechargeable battery pack for starting a diesel locomotive and a method of use thereof. In one form, the battery pack includes: a plurality of lithium ion battery cells arranged in two or more layers, each layer having a battery management system ("BMS") for at least monitoring a state of the cells in the layer; and a controller in communication with each BMS for at least ensuring sufficient charge is retained to start the diesel locomotive, said controller configured to isolate the battery pack from external loads when the battery pack has been running for a predetermined amount of time and current and state of charge ("Soc") have reduced to predetermined thresholds.

The utility model discloses a sealing structure side-mounted starter giving consideration to idling start-stop, and belongs to the technical field of starters. The starter body is installed on the air inlet side of an engine and an engine cylinder flange, the starter body is installed laterally, a front end cover of the starter body is of a stepped structure, and a sealing strip is pasted to the front end cover to seal a flywheel shell. According to the utility model, the front end sealing cover of the starter is laterally mounted and lifted, and the rear end space of the starter required for disassembling the starter is reduced, so that the flywheel casing can be sealed under the conditions that the front casing flange of the transmission is enlarged and is close to a cylinder body, and the dustproof and waterproof requirements of a vehicle factory are met; the functions of idling start-stop and high power are achieved by only changing components in the starter or increasing the lengths of the stator and the rotor of the starter, more vehicle engine project requirements are met, installation interfaces are unified, and the states of related parts of the starter are reduced.

The invention discloses a one-key starting method of a piston engine unmanned aerial vehicle. According to the invention, the starting process is integrated into one button operation, and the flight control system automatically completes the steps of fuel supply, preheating, ignition and the like, so that the operation process is greatly simplified, the takeoff preparation time is shortened, the starting efficiency is improved, and the unmanned aerial vehicle can be put into task execution more quickly. According to the one-key starting method, the starting process is automated, human errors are avoided, the starting success rate is increased, the engine fault risk is reduced, and the reliability of the unmanned aerial vehicle is improved. The system monitors engine state parameters such as the rotating speed, the oil pressure, the water temperature and the oil temperature in real time and judges whether starting conditions such as the preheating temperature and the accelerator position are met or not. And if abnormal conditions such as fault warning and insufficient preheating time are found, the flight control system can stop a starting program and give an alarm, so that the engine is prevented from being started in an abnormal state, the starting safety is improved, and the safety of personnel and equipment is guaranteed.

The utility model relates to the technical field of engine starting, in particular to a starting structure of an in-line piston engine, an engine and an aircraft thereof, which comprises a starting motor, the starting motor is installed on the upper portion of an engine crankshaft box body, and the output end of the starting motor penetrates through the box body and drives a reduction gear assembly through gear meshing. The reduction gear assembly comprises a reduction gear and a driving gear, the reduction gear is formed by laminating a plurality of large gears, the driving gear is meshed with the reduction gear, the large gears are laminated through friction plates and belleville springs, a starting gear is arranged at the front end of the engine crankshaft, and a one-way overrunning clutch assembly is integrally arranged on the starting gear. According to the utility model, the installation position of the starting motor is moved from the end part of the crankcase body to the upper part of the crankcase body, and meanwhile, the number of gears is reduced, so that the miniaturization design of the crankcase body is realized.

A computer-implemented method when executed by data processing hardware causes the data processing hardware to perform operations. The operations include detecting a park mode of a vehicle equipped with an automatic protected idle function and activating the automatic protected idle function automatically in response to the detected park mode. A state of a control switch associated with the automatic protected idle function is determined, and a hold time is set in response to a respective determined state of the control switch. The operations also include modifying the automatic protected idle function for one or more ignition cycles in response to the set hold time.