43 results about "Powertrain control" patented technology

The invention relates to a control system (10) and a method (400) for controlling a hybrid powertrain (20) of a vehicle (300). The hybrid powertrain system (20) may be operated in a plurality of powertrain operating modes, each powertrain operating mode having an associated set of powertrain control parameter values. The hybrid powertrain (20) includes an engine (202) and a traction motor (216). The control system includes one or more controllers (110) that are collectively configured to: determine (410) that the hybrid powertrain system (20) is simultaneously operating in two or more of the plurality of powertrain operating modes; determining (420) which of the two or more simultaneously operating powertrain operating modes has the highest priority based on a predetermined priority index of the plurality of powertrain operating modes; and controlling (430), via the one or more controllers (110), at least one of the engine (202) and the traction motor (216) based on the set of powertrain control parameter values associated with the highest priority powertrain operating mode.

This invention provides a powertrain control method, control system, and vehicle for a hybrid vehicle, relating to the field of vehicle control technology. The powertrain control method of this embodiment includes: determining whether a power battery has experienced a power-limited fault; when a power-limited fault is determined, performing torque control on a first motor and a second motor, while simultaneously disabling the anti-shake function of the second motor, so that the power generation of the first motor and the load power consumption remain consistent, and maintaining the current at the power battery bus terminal at zero; and performing voltage control on the first motor so that the difference between the actual voltage of the first motor and the set voltage is within a preset difference range. This control method can ensure normal vehicle operation while avoiding the problem of the vehicle being unable to drive or even experiencing power battery failure due to power-limited power, thus improving vehicle driving safety under power-limited conditions.

A fuel cell electric vehicle (FCEV) includes an electric traction motor configured to drive the FCEV and generate power through regenerative braking, a high voltage (HV) battery system including a HV bus and a HV battery configured to power the electric traction motor, and a fuel cell stack (FCS) configured to generate electricity to recharge the HV battery and / or power the electric traction motor. A powertrain control system for preventing over-voltage of the HV bus and HV battery includes a controller having one or more processors configured to control (i) a fuel cell power limit of the FCS, and (ii) a regenerative braking power limit of the electric traction motor. The controller is programmed to measure a voltage of the HV battery system, and selectively limit the fuel cell power limit and / or the regenerative braking power limit when the measure voltage exceeds a predetermined threshold.

A method for controlling vehicle propulsion includes receiving signal data corresponding to a signaled intersection of a route being traversed by a vehicle. The method further includes determining an intersection propulsion profile for the signaled intersection based on at least a current vehicle speed and the signal data. The method further includes determining, based on the intersection propulsion profile, whether to deviate from a vehicle energy consumption profile corresponding to the route being traversed by the vehicle. The method further includes, in response to a determination to deviate from the vehicle energy consumption profile, selectively controlling vehicle propulsion of the vehicle according to the intersection propulsion profile. The method further includes, in response to traversing the intersection, selectively controlling vehicle propulsion according to the vehicle energy consumption profile.

The utility model provides a self-propelled range-extended vegetable tobacco seedling transplanter which comprises a whole machine support, a walking mechanism, a seedling dropping mechanism, a seedling planting mechanism, a power assembly and a controller, the whole machine support is arranged on the walking mechanism, and the seedling dropping mechanism, the seedling planting mechanism, the power assembly and the controller are all arranged on the whole machine support. The seedling dropping mechanism comprises a plurality of seedling dropping cylinders which are distributed at equal intervals in the circumferential direction, the seedling planting mechanism comprises a seedling receiving guide hopper, a well cellar type seedling planting nozzle and a seedling planting driving execution assembly, and the power assembly provides electric energy for the walking mechanism, the seedling dropping mechanism, the seedling planting mechanism and the controller. The transplanter is simple in structural composition and convenient for subsequent maintenance and repair; when transplanting operation is carried out, the action of each execution mechanism is independently executed by an independent motor, and the controller can flexibly control the running state of each motor according to requirements, so that accurate matching and flexible adjustment of the executable action can be realized.

A method includes obtaining a user profile that includes first parameter values associated with a first powertrain control mode and lacks second parameter values associated with a second powertrain control mode. The method also includes identifying a behavior group based on similarity of the user profile to third-party profiles in the behavior group, and updating the user profile based on the third-party profiles to include the second parameter values. The method also includes controlling a vehicle powertrain based on the user profile.

The invention discloses a four-wheel drive torsional vibration optimization method and system based on an automatic gearbox gear shifting strategy, and relates to the technical field of vehicle power assembly control. The method comprises the following steps: adjusting upshift logic of an automatic gearbox under an acceleration working condition by identifying a sensitive rotating speed interval in which an engine triggers torsional resonance of a four-wheel drive transmission system, and improving the upshift triggering vehicle speed of each gear, so that the target rotating speed of the engine after upshift avoids the sensitive rotating speed interval; an optimized gear shifting MAP is constructed and written into a transmission control unit, upshift action is executed by the transmission control unit according to the real-time state, and vibration is restrained from being transmitted to a vehicle body through a transmission path; and meanwhile, a vehicle-mounted sensing unit is used for collecting feedback data to form a parameter dynamic correction closed loop. According to the scheme, a torsional vibration resonance area can be effectively avoided, roar noise in a vehicle is reduced, the NVH performance is improved, and the method has the advantages of being low in cost, flexible in arrangement and capable of being dynamically optimized.

A hybrid electric vehicle (HEV) includes an internal combustion engine, an electric traction motor, a belt starter generator (BSG) unit, a low voltage battery system including a low voltage battery, and a high voltage battery system including a high voltage traction battery. A DC / DC converter is configured to convert high voltage from the high voltage battery system into low voltage to charge the low voltage battery and support low voltage loads. A powertrain control system configured for reducing HEV CO2 emissions includes a controller configured to control an output voltage setpoint of the DC / DC converter and the BSG unit. The controller is configured to selectively increase or decrease the output voltage setpoints of the DC / DC converter and / or the BSG unit to reduce high voltage battery power consumption to thereby avoid or delay turning on the internal combustion engine to reduce CO2 emissions.

A powertrain for an aerial vehicle may include a mechanical power source and a propulsion member coupled to the mechanical power source and configured to be coupled to the chassis and convert at least a portion of the mechanical power supplied by the mechanical power source into at least one of a thrust force or cooling. The powertrain also may include an electric power generation device configured to convert at least a portion of the mechanical power into electrical power. The powertrain further may include a powertrain control system associated with the powertrain and configured to at least partially control at least one of an output speed of the mechanical power source or a pitch angle associated with the propulsion member, based on at least one of an operation, a status factor, or at least one component characteristic associated with the aerial vehicle.

A universal controller for a powertrain is provided. The universal controller comprises a configurable powertrain model which is configurable to model a class of generic powertrains comprising J generic power sources, K generic power sinks, and L generic couplings. The universal controller is arranged to receive an input file comprising a plurality of input parameters to configure the configurable powertrain model of the universal controller to control a specific powertrain having a powertrain architecture comprising N power sources, M power sinks, and X couplings. The configurable powertrain model is configured to model the specific powertrain based using N power source models, M power sink models, X coupling models, and a model architecture which may be defined from a generic powertrain component library and a connection parameter module.

A method of charging a vehicle having a battery operable to power an electric traction system includes connecting the battery (20) to a charger (9), wherein the electric vehicle (10) includes a powertrain controller communicatively connected to the battery (20) and the charger (9) when the battery (20) is connected to the charger (9); and by the charge controller: determining a feedforward demand current; receiving a measured battery current indicative of a current received by the battery (20) from the charger (9); determining a current feedback based on an integral of a difference between the measured battery current and the feedforward demand current; and determining a target current based on a sum of the feedforward demand current and the current feedback; and commanding the charger (9) to supply the target current to the electric vehicle (10).

The invention provides an extended-range power assembly, a control method and an electric vehicle, and is applied to the technical field of electric vehicles. The range-extended power assembly comprises a generator, a generator controller and a range-extended engine, and in the running process that the vehicle speed of the electric vehicle is smaller than or equal to a first preset vehicle speed and the range-extended power assembly generates electricity, the generator of the range-extended power assembly actively outputs torque to the crankshaft in the electricity generation process. Noise vibration generated by the range-extending power assembly is actively restrained, and non-inductive range extending is achieved. In the running process that the speed of the electric vehicle is larger than or equal to the second preset speed, the second preset speed is larger than the first preset speed, the generator stops outputting the torque to the crankshaft in the power generation process, and active restraining of noise vibration generated by the range extending type power assembly is stopped; and the risk that the power generation efficiency is reduced due to active output torque of the generator is avoided.

The invention relates to a computer-implemented method (100) for controlling a vehicle (300) with a powertrain, comprising: receiving (110) a warning signal characterizing an obstacle along a movement trajectory of the vehicle (300) and a predetermined safety distance to the obstacle; determining (120) a safety driving speed profile of the vehicle (300) defining a predetermined safety driving speed of the vehicle (300) from a point when the safety distance is undershot, wherein the safety driving speed is based on a distance of the vehicle (300) to the obstacle and at least one safety aspect for the vehicle (300);Output (130), upon falling below the safety distance, a modulation instruction to the powertrain (310) to modulate a powertrain vibration of the powertrain (310) such that, based on the powertrain vibration, a vibration of the safe driving speed of the vehicle (300) results, wherein the modulation is further based on the safe driving speed profile and at least one damage accumulation hypothesis for the powertrain (310).

A sensor is provided for use in a control system of a powertrain, such as for a vehicle or other application. The sensor provides outputs indicative of one or more operating parameters of the powertrain to a control unit of the control system. The control unit is configured to determine if a fault condition is present based at least in part on the outputs provided by the sensor. Fault condition data for fault conditions that are determined to be present at least in part on the sensor outputs are recorded on a memory of the sensor.

A mobile machine includes a powertrain having a primary transmission connected to a primary axle and a secondary transmission connected to a secondary axle. To regulate operation of the powertrain, the mobile machine is associated with a powertrain control system. The powertrain control system receives data inputs and powertrain characteristics and predictively estimates if nonsynchronous shift will occur with the primary transmission. The powertrain control system adjusts a secondary power output of the secondary transmission in response to and concurrently with the nonsynchronous shift.

According to the non-inductive range-extending range-extending power assembly, the control method and the vehicle, a power generator controller actively controls a power generator to output torque before a range-extending engine outputs torque, instead of controlling the power generator to output the torque after receiving a torque instruction of a whole vehicle controller, and therefore the range-extending range-extending power assembly is more stable and reliable. Therefore, the control of the generator does not depend on the communication between the vehicle control unit and the generator controller any more, the waiting time generated by the communication delay between the vehicle control unit and the generator controller in the control process is eliminated, the time required for completing the control is shortened, the timeliness of the generator control is improved, and the control efficiency is improved. Therefore, the NVH problem of the range extender is solved, and the driving experience of a user is improved.

This disclosure relates to a vehicle powertrain control method, device, medium, and electronic equipment. The vehicle powertrain includes a first motor, a second motor, an engine, and a clutch. The inner race of the clutch is driven and connected to the first motor and the engine, and the outer race of the clutch is driven and connected to the first motor. The first motor drives the engine, and the second motor drives the vehicle. The control method includes: acquiring vehicle operating condition information; determining, based on the vehicle operating condition information, that an emergency disengagement condition is met, and that disengagement fails, disabling the vehicle's driving function, and then controlling the first motor to reverse to disengage the clutch. This disclosure enables rapid intervention after a vehicle disengagement failure, preventing damage to the clutch hardware.

This application relates to an engine shutdown control method, apparatus, electronic device, storage medium, and computer program product. The method includes: acquiring vehicle driving information during vehicle operation, and determining whether the vehicle needs to perform an engine shutdown operation based on the driving information; if an engine shutdown operation is required, determining a powertrain control strategy for the vehicle based on the driving information, and controlling the vehicle's power components according to the powertrain control strategy; after controlling the vehicle's power components according to the powertrain control strategy, if no engine start signal is received, cutting off the fuel supply to the vehicle's engine. This method can reduce abnormal vibrations caused by engine shutdown.

The invention discloses a parallel multi-motor power assembly control system, which belongs to the technical field of electric vehicle integrated control, and comprises a whole vehicle control unit used for identifying the driving intention of a driver, collecting opening signals of an accelerator and a brake pedal, calculating the output torque required by each driving motor, distributing the torque to each driving motor by a driving motor controller, and controlling the driving intention of the driver; the power device comprises a first motor controller and a second motor controller and is used for controlling and driving all the driving motors, efficient transmission under the working conditions of large torque and large current can be achieved, the overall electric driving efficiency level is improved, a high-speed motor and a low-speed motor are made to work in respective efficient areas, the current passing through the SIC controller is effectively reduced, and the service life of the SIC controller is prolonged. The SIC temperature rise speed is slowed down, the service life of the controller is prolonged, meanwhile, the system energy consumption is reduced, the stability and reliability of the system are improved, and the problem that in the prior art, a motor and gearbox matching strategy is not optimized enough is effectively solved.

A mobile machine includes a powertrain having a primary transmission connected to a primary axle and a secondary transmission connected to a secondary axle. To adjust operation of the powertrain, a mobile machine is associated with a powertrain control system. The powertrain control system receives a data input and powertrain characteristics and predictively estimates whether an asynchronous shift of the main transmission will occur. The powertrain control system adjusts a secondary power output of the secondary transmission in response to and concurrently with the asynchronous shift.

This application relates to the field of vehicle power technology, and provides a testing method, system, and electronic equipment for vehicle powertrains. This application uses a user terminal to generate control signals corresponding to each operating condition node according to the communication protocol of the vehicle controller, and simulates the communication environment between the vehicle controller and the powertrain under test. The simulated communication environment sequentially triggers the powertrain under test to execute each control signal, and test results are generated based on the output messages of the powertrain under test. Compared to testing the vehicle powertrain using the vehicle controller, simulating the communication environment between the vehicle controller and the powertrain under test through the user terminal, and simulating the vehicle controller triggering the powertrain under test to execute each control signal, reduces the number of controller hardware required to achieve vehicle-level powertrain control and simplifies the virtual data construction process, thereby reducing the testing cost of vehicle powertrains.

The present application relates to the field of new energy vehicles, and provides a range-extended powertrain for implementing seamless range extension, a control method and a vehicle, which can be applied to range-extended electric vehicles. The range-extended powertrain comprises a generator, a motor controller and a resolver. The generator is used for connecting to a range extension engine by means of a drive shaft, and the range extension engine is used for outputting power generation torque to the drive shaft so as to drive a rotor of the generator to rotate. The resolver is used for measuring the position angle of the rotor. The motor controller is used for outputting, during a process in which the range extension engine outputs the power generation torque to the drive shaft so as to drive the rotor of the generator to rotate, a current to the generator so as to control the generator to output vibration suppression torque to the drive shaft, the vibration suppression torque and the power generation torque having opposite directions, and the magnitude of the vibration suppression torque changing along with changes of the position angle of the rotor indicated by the resolver. The present solution involves high position detection accuracy and can suppress vibration and noise obviously, thus improving the levels of comfort and NVH of vehicles.

Systems and methods for controlling vehicle energy efficiency are provided. The system may comprise an ADAS, a navigation sensor configured to collect navigation data, and an electric drive cooling system, comprising a powertrain controller, comprising a processor and a memory, one or more electric motors (EMs), one or more power electronics (PEs), and a temperature control system. The processor may be configured to determine a vehicle route, dissect the route into a plurality of segments, calculate a travel time for each segment, divide the travel time into a number of prediction steps, forming a prediction horizon, establish one or more road conditions, estimate EM motor speed and torque, and estimate a temperature profile for the EMs and PEs across the prediction horizon, and determine one or more control inputs to cause the one or more EMs and the one or more PEs to function within a desired temperature range.

The invention provides an extended-range power assembly, a control method and an electric vehicle, and is applied to the technical field of electric vehicles. The range-extended power assembly comprises a generator, a generator controller and a range-extended engine, the generator controller is used for receiving current generated by the generator and charging a power battery in the running process before the range-extended engine flames out, and the range-extended power assembly runs normally. After the extended-range engine flames out, the rotating speed of forward rotation of the generator is controlled to be reduced, then the generator is controlled to rotate reversely so that a rotor of the generator can stop rotating at a preset stop position, and the reverse rotation of the generator drives a piston to be away from a stop point which can be touched in the process that the rotor rotates forwards to the preset stop position. According to the technical scheme, large pumping resistance at the stop point is avoided, stop shaking is effectively reduced, when the rotor stops rotating at the preset stop position, the piston also stops at the corresponding position, the dragging resistance is the same when the extended-range engine is started every time, and starting smoothness is improved.

Systems and methods for operating a hydrogen-battery powertrain of a fuel cell electric vehicle are disclosed. The methods advantageously adopt a proactive control strategy that leverages navigation information to improve fuel economy, reduce degradation, and improve thermal management. Particularly, an expected route of the vehicle is determined based on navigation information provided by a navigation system. Based on the expected route, control-strategy relevant characteristics of the drive cycle are predicted, at least including a power requirements profile of the battery-hydrogen powertrain. The control-strategy relevant characteristics of the drive cycle are leveraged to provide optimal control strategies that improve fuel economy, reduce degradation, and improve thermal management.

A system includes a powertrain controller operatively coupled with and configured to control operation of a powertrain of a vehicle and for bidirectional communication via a wireless communication path. An optimization engine is configured to determine optimized powertrain operation parameters for the powertrain controller and for bidirectional communication via a second communication path. A channel management engine is configured for bidirectional communication with the powertrain controller via the wireless communication path and for bidirectional communication with the optimization engine via the second communication path, the channel management engine configured to dynamically update a plurality of data channels including a first data channel storing a non-transitory dynamically-updated instance of powertrain operation data received from the powertrain controller, and a second data channel storing a non-transitory dynamically-updated instance of optimized powertrain operation parameters received from the optimization engine.

A powertrain control method for a vehicle includes determining, based on empirical operation data for a powertrain, maximum torques for the torque generating system at each of a plurality of breakpoints corresponding to different impeller speeds for a torque converter and different speeds of a torque generating system, identifying, between two particular breakpoints, (i) a linear intersection point between the maximum torque and the impeller speed for the torque converter and (ii) an intersection region between the two particular breakpoints, determining a quadratic polynomial representation of the impeller speed for the torque converter across the intersection region based on the empirical operation data for the torque converter, and utilizing the quadratic polynomial representation of the impeller speed for the torque converter across the intersection region for improved control of the powertrain.

The invention discloses a power assembly, a control method and an electric vehicle, and relates to the technical field of new energy automobiles. The power assembly comprises a motor controller and a driving motor, the motor controller comprises a three-phase bridge arm, three bridge arm midpoints of the three-phase bridge arm are used for being connected with a three-phase winding of the driving motor respectively, and in the process that the electric vehicle runs on the road surface with the adhesion coefficient smaller than a preset value, after the power assembly breaks down, the driving motor drives the three-phase winding to rotate. The motor controller circularly switches between an active short-circuit state and a full-tube-closing state in the process of controlling the driving motor to reduce the rotating speed, and the active short-circuit state refers to a state in which three upper bridge arms of the three-phase bridge arm are conducted and three lower bridge arms are disconnected or three upper bridge arms of the three-phase bridge arm are disconnected and three lower bridge arms are conducted; the fully-closed tube state refers to a state in which three upper bridge arms and three lower bridge arms of the three-phase bridge arms are all disconnected. According to the scheme, tire locking is avoided, slipping on a low-adhesion road surface is prevented, and the stability and safety of the electric vehicle are improved.

Use of multi-time domain optimization of vehicle dynamics and powertrain control of a vehicle is provided. A long time domain optimization is performed for a trip of the vehicle and an optimal value function is determined. Data from one or more components of the vehicle is received from powertrain and / or connectivity features. A short time domain optimization is performed for the trip using a rollout algorithm, the optimal value function, and the received data. Operation of the vehicle is adjusted using results of the short time domain optimization.

The invention relates to a multi-powertrain platform (8) for a motor vehicle (1), comprising a front module (12) forming part of a vehicle front section (2) in the motor vehicle (1), a rear module (13) forming part of a vehicle rear section (4) in the motor vehicle (1), and a connecting module (14) forming part of a vehicle center section (6) in the motor vehicle (1) and being electrically and / or fluidically and / or mechanically coupled to the front module (12) and to the rear module (13), wherein the front module (12) is configured as a pulling drive module comprising a vehicle drive (9) or as a pushed storage module comprising an energy storage device (10), wherein the rear module (13) is configured as a pushing drive module comprising the vehicle drive (9) or as a pulled storage module comprising the energy storage device (10), and wherein the connecting module (14) comprises a powertrain control unit (11).which is coupled with the respective vehicle drive (9) and with the respective energy storage device (10), which is configured to control the powertrain (21) for several different powertrain configurations and which is also configured to automatically detect the powertrain configuration and control the powertrain (21) in the motor vehicle (1) according to the detected powertrain configuration.