179 results about "Powertrain control" patented technology

A powertrain control selects engine operating points in accordance with power loss minimization controls. Power loss contributions come from a variety of sources including engine power losses. Engine power losses are determined in accordance with engine operating metrics such as power production per unit fuel consumption and power production per unit emission production. Engine power losses are combined in accordance with assigned weighting into a single engine power loss term for use in the power loss minimization control and operating point selection.

A powertrain control selects engine operating points in accordance with power loss minimization controls. Power loss contributions come from a variety of sources including engine power losses. Engine power losses are determined in accordance with engine operating metrics such as power production per unit fuel consumption and power production per unit emission production. Engine power losses are combined in accordance with assigned weighting into a single engine power loss term for use in the power loss minimization control and operating point selection.

A system and method for controlling a vehicle powertrain having an internal combustion engine include determining a difference between a desired engine torque and a current engine torque, adjusting the difference based on a stored torque offset corresponding to a current engine speed, and controlling the engine to produce a torque corresponding to the adjusted torque difference. The stored torque offset is adjusted when the engine is operating in a predetermined engine speed range based on a steady-state difference between the desired and current engine torque to reduce the steady-state difference to zero. The adjusted torque difference may be limited by a maximum-engine-torque-available parameter and a minimum-engine-torque-available parameter, which is based on an operating temperature, such as the engine coolant temperature. The system and method may also include controlling spark to rapidly reduce current engine torque to the adjusted torque difference value.

The invention is a power output switching method and control system of power assembly of mixed power saloon car. It can switch the power output and manage system energy, and according to state switching boundary value and result judgment of data collection, makes the power assembly switch to the states such as reclaiming plugging energy; charging accumulator by engine; electric driving; mixed driving; engine driving; etc to make coordination treatment. Its control system includes main chip, as well as switch quantity conditioning circuit, analogue quantity conditioning circuit, pulse signal conditioning circuit, CAN bus interface, D / A converting circuit, drive isolating circuit, etc, where they are all connected with the main chip. It can make the output torque realize fast smooth switch in a large range, and heightens the energy using efficiency.

An arrangement is provided for controlling a motor vehicle powertrain. The controller comprises means for measuring an operator request for acceleration, and means for controlling the component as a function of the operator request for acceleration.

Presented are intelligent vehicle systems and control logic for predictive charge planning and powertrain control of electric-drive vehicles, methods for manufacturing / operating such systems, and electric-drive vehicles with smart charge planning and powertrain control capabilities. Systems and methods of AI-based predictive charge planning for smart electric vehicles use machine-learning (ML) driver models that draws on available traffic, location, and roadway map information to estimate vehicle speed and propulsion torque requirements to derive a total energy consumption for a given trip. Systems and methods of AI-based predictive powertrain control for smart hybrid vehicles use ML driver models with deep learning techniques to derive a drive cycle profile defined by a preview route with available traffic, geopositional, geospatial, and map data. ML-generated driver models are developed with collected data to replicate driver behavior and predict the drive cycle profile, including predicted vehicle speed, propulsion torque, and accelerator / brake pedal positions for a preview route.

The invention discloses a system and a method for remote control, upgrading and standardization of an electric vehicle. The system comprises a monitoring module, a parameter calibration module, a software system upgrading module and a specialist on-line module, wherein the monitoring module is used for displaying all operating parameters and setting up a corresponding data base, the parameter calibration module is used for readjusting the calibration parameters of the electric vehicle and issuing the new calibration parameters to all power assembly controllers of the electric vehicle through a wireless data transmission controller, the software upgrading module is used for automatically guiding a software system to update, and the specialist on-line module is used for putting forward parameter boundaries sagely used by the electric vehicle at present. According to the system and the method, the calibration parameters can be updated according to the operating environment, the service life of batteries and the electric vehicle is prolonged, specialist on-line support is provided for using stations of an electric vehicle power assembly system, permitted parameter boundaries are put forward for the safety of all components of power assemblies, and safety and reliability of the whole vehicle are improved.

A powertrain control ECU sets a target driving force, and controls an internal combustion engine and a transmission of a vehicle. A first processor of the powertrain control ECU includes a driving force adjustment portion, a filter, a mode-switch, an environmental information-obtaining device, and a steering sensor. The driving force adjustment portion sets the target driving force based on at least one of instructions from a driver and from a second processor. The filter corrects the target driving force to suppress vibration on a spring of the vehicle. The mode-switch sets the running mode. The environmental information-obtaining device obtains information on the environment around the vehicle. The steering angle sensor determines the running condition. A correction amount, by which the filter corrects the target driving force, is adjusted according to the running mode, the environment, and the running condition.

The invention relates to a kind of gear shifting controlling method of operation without clutch of parallelly connected mixed power automobile , which belongs to the technique field of power assembly control of mixed power automobile and the control of gear shifting course . Its characteristic lays in that it doesn't use clutch in the automobile gear shifting course , but will pluck old gear and hitch new gear when the hybrid torque output of engine and generator is 0 , thus to realize the aim of shifting gear . The invention needn't separate the clutch before plucking old gear and needn't engage the clutch before hitching new gear , it utilizes the rotational speed of engine and outputting toque MAP picture in proper opening degree of air damper to control the outputting torque of generator , thus control the hybrid outputting torque of the engine and generator being 0 , then pluck old gear and hitch new gear . The invention can reduce the time of gear shifting course , lengthen the service life of the clutch , improve the quality of gear shifting course and improve the accelerating performance of the vehicle , and because it needn't separate the clutch in the gear shifting course , the controlling logic of gear shifting is simplified .

The present invention relates to a powertrain control system (1) for a vehicle. The powertrain control system (1) includes a torque limit calculator (47) for generating a torque control signal based (57) on one or more vehicle operating parameters. A torque request module (43) is provided for generating a torque request signal (45) and a torque control module (7) controls the torque applied by the powertrain. The torque control module (7) is configured to receive the torque request signal (45) from the torque request module (43) and the torque control signal (57) from the torque limit calculator (47) and to control the torque applied by the powertrain in dependence on the torque request signal (45) and the torque control signal (57). The present invention also relates to a control system; and a method of operating a powertrain control system.

A method for controlling a powertrain of a hybrid vehicle having an engine, a motor / generator, a battery that is rechargeable using at least one of the engine and the motor / generator, and a powertrain control module (PCM) includes determining a current location of the vehicle as a starting point of a preferred route, recording a user-selected ending point of the preferred route, and processing route information using the PCM to thereby determine an optimally fuel efficient route for reaching the ending point. The method includes automatically executing the powertrain control strategy over the optimally fuel efficient route by substantially depleting a charge level of the battery as the vehicle travels over the optimally fuel efficient route such that the charge level of the battery is depleted when the vehicle reaches the ending point. When the ending point is not recorded, the PCM can default to a charge-sustaining mode.

The technology described herein provides a powertrain system with a route-learning feature. Particularly, learned information is used to optimize powertrain operation along any learned route. The learned information comprises, generally, feedback from the vehicle's acceleration and brake sensors and information from an on-board trip computer. At the least, the powertrain is able to optimize its operation to a driver's preference based on the feedback recorded along a particular route that the driver has specified. The route-learning powertrain control described herein is particularly useful with a hybrid powertrain, and can be used to optimize start / stop and regenerative braking control. The system described herein can also be integrated with a navigation system and GPS receiver, to provide more accurate route-learning and / or automated operation.

A vehicle powertrain control system including an electric motor drive system, a first battery coupled to the electric motor drive system, an electronically controlled switched coupled to the first battery, a second battery coupled to the electronically controlled switch, and where the electronically controlled switch applies power from the second battery to supplement the first battery.

A driver-initiated low traction control method limits the drive torque of a motor vehicle during operation on low traction road surfaces. The low traction control mode is initiated by actuation of a switch or by moving a transmission range selector to a Low range while the vehicle is substantially stopped, and terminated by further actuation of the switch or by returning the range selector back to the Drive setting. The low traction control mode limits the engine torque as required to limit the drive wheel torque and its rate of change, so long as cruise control is inactive, the accelerator pedal setting is less than a reference level, and the transmission is operating in a gear other than its top gear. When the low traction control mode is terminated, the engine torque limits are progressively removed in a way that does not produce perceptible acceleration or deceleration of the vehicle.

The invention relates to an association of torque requesting modules in a coordinated torque architecture. The powertrain control system for a vehicle includes a plurality of axle torque request modules that generate respective axle torque requests based on respective performance criteria of a vehicle, an axle torque arbitration module that generates a net axle torque request based on the plurality of axle torque requests, a plurality of propulsion torque request modules that generate respective propulsion torque requests based on respective performance criteria of an engine of the vehicle, apropulsion torque arbitration module that determines a net engine torque request based on the net axle torque request and the plurality of propulsion torque requests, and a propulsion torque control module that controls a plurality of actuators based on the net engine torque request such that the engine produces an output torque in accordance with the net engine torque request.

A powertrain control system for management and supervision of engine and servo-assisted gearbox control modules is arranged for determining the power to be applied to the drive wheels of the vehicle as a function of signals indicative of commands imparted by the driver, of the engine and gearbox state parameters and of possible requirements from the engine and gearbox control modules and supplementary on board vehicle traction / drive control systems; calculating data indicative of the torque to be delivered at the engine drive shaft, the torque transmissible by the clutch and the required transmission ratio, as a function of the determined value of the power to be applied to the drive wheels, of the state parameters and of the requirements of the engine and gearbox control modules and the traction / drive control systems; and transmitting the calculated data as signals to the engine and gearbox control modules.

The invention relates to an anti-theft method for automobiles, which comprises the following steps that: a decryption algorithm and a key which are matched with a random sequence code rule generated by an anti-theft key are preset in an engine controller; the anti-theft key is inserted into an ignition lock, generates a random sequence code, calculates according to the decryption algorithm and the key, and sends the random sequence code and a result sequence code; the engine controller receives the random sequence code and the result sequence code and performs unlocking calculation; the anti-theft key is successfully unlocked when an unlocking calculation result is correct; a decryption algorithm and a key which are matched with an owner identity (ID) and an owner ID decryption sequence code are preset in a power assembly controller; the power assembly controller receives the encrypted owner ID and the encrypted owner ID decryption sequence code and performs decoding operation; a braking system is unlocked after the decoding is successful; and a decoding success command is sent to the engine controller. The anti-theft method and an anti-theft system for the automobiles are used for preventing the theft of vehicles and improving the safety of the vehicles.

Disclosed are a vehicle power assembly control method and a vehicle power assembly control system. The vehicle power assembly control method includes steps: acquiring a current accelerator opening degree, current vehicle speed, a current gear ratio, a transmission and rotation inertia factor and a current gear position of a vehicle; confirming driving power according to the current accelerator opening degree and the current vehicle speed; confirming driving torque according to the current vehicle speed, the current gear ratio, the transmission and rotation inertia factor, the current accelerator opening degree, the current gear position and the driving power; confirming TCU (terminal control unit) request torque according to the driving power and the driving torque; performing vehicle power control according to the driving torque, and controlling a gearbox according to the TCU request torque. The vehicle power assembly control method confirms the torque of the vehicle based on the driving power, and thereby solves the problem that vehicle power is discontinuous, caused by step gear shifting before and after shifting gears, and improves shift quality of the vehicle.

This invention relates to a power assembly control system used in mixed power electromotor including a three-phase commutation unit, a high voltage power distribution unit and an entire car central control unit, in which, the three-phase full wave commutation unit carries out full wave commutation to the three-phase AC current output by a generator to convert it to DC supply, the high voltage power distribution unit includes a DC output and test circuit, a power storage battery circuit, a motor supply circuit, an oil pump motor supply circuit, a gas pump motor supply circuit, an air conditioning supply circuit and an assistant power supply circuit, which is highly integrated and suitable for distribution in the car limit space.

Systems and methods are described for powertrain controls optimization. One method comprises adaptively learning engine settings for a sparse sample of a speed-load map, which includes engine operation at boundary conditions of a speed-load map, and generating a dynamic node look-up table based on the learned engine settings for the sparse sample. The dynamic node look-up table may provide engine settings for engine operation at speed-load points not explicitly learned during the adaptive learning.

A powertrain control system is described for a motor vehicle provided with at least one engine and a gearbox of servo-assisted type, connectable to the drive shaft of the engine (ICE) via at least one servo-controlled clutch, to which are associated respective control modules arranged to perform an automatic control procedure for control of the traction as a function of signals or data indicative of commands imparted by a motor vehicle driver, and predetermined state parameters of the engine and the gearbox; the system including a module for management and supervision of the said control modules, arranged to manage the powertrain of the vehicle, and in particular to: determine in a predetermined manner, the power to be applied to the drive wheels of the vehicle as a function of signals or data indicative of commands imparted by the driver, of state parameters and of possible requirements from the control modules and / or supplementary on board vehicle traction / drive control systems; calculate, as a function of the determined value of the power to be applied to the drive wheels, of the state parameters and of the requirements of the control modules and the traction / drive control systems, the transmission ratio to use at the gearbox, the torque transmissible by the clutch of the gearbox and the torque required at the engine drive shaft for each operative condition of the gearbox and transmit to the control modules respective signals or data indicative of the torque to be delivered at the engine drive shaft, the torque transmissible by the clutch and the required transmission ratio.

The gear-shift control method for parallelly-connected mixed power system includes the gear-shifting operation control step of power assmelby controller under the four conditions of engine single drive, dynano single drive, engine and dynamo combined drive and engine drives dynamo to make it generate power. It is characterized by that the described gear-shifting control method includes: when the automatic mechanical speed changer is used to engage a gear, the power assembly controller can implement speed-regulating control step of dynamo, and when the automatic mechanical speed changer clutch is engaged, the power assembly controller can implement speed-regulating control step of enige. Said invention adopts the power assembly controller and automatic mechanical speed changer combined gear-shifting control process to ensure smooth gear-shifting operation and raise the driving comfortability.

The invention discloses an intelligent control method for a power assembly of a hybrid electric vehicle, and belongs to the technical field of hybrid electric vehicles. The intelligent control method for the power assembly of the hybrid electric vehicle comprises the steps that 1, information is obtained, particularly the hybrid electric vehicle is started, an ECU of each intelligent body in an intelligent control system of the power assembly is initialized electrically, and an engine intelligent body, a motor intelligent body, a storage battery intelligent body and a speed changer intelligent body obtain the respective real-time state information; 2, the information is interacted and a preliminary decision is made, particularly the information of the intelligent bodies is interacted and the preliminary decision is made according to the preset values of the ECUs of the intelligent bodies; 3, the system coordinates a task, particularly task decomposition is carried out on the optimal running mode, adapting to the current working condition of the vehicle, of the power assembly according to a multi-dimensional look-up table or a control strategy of fuzzy reasoning; 4, the task is carried out, particularly the control strategy of the running assembly intelligent bodies amends sub-tasks and controls respective executing mechanisms to be coordinated to finish the control task of the power assembly. The emission performance is improved while the dynamic property and the fuel economy of the vehicle are improved.

An expanded powertrain interface and strategy for an autonomous driving controller to control powertrain torque (or vehicle acceleration / deceleration) capability at the current operating point, in addition to capability for subsequent operating points at a future time based on predictive assessment of powertrain energy management, subsystem contraints / limits, and capability in the future. The powertrain interface and strategy applies to a vehicle with electrified powertrain control (hybrid electric vehicle (HEV) or pure battery electric vehicle (BEV)) with an autonomous driving (AD) capability (either full or semi-automated driving). This powertrain interface and strategy may also be used with non-electrified powertrain (conventional) systems based on available combustion engine torque at the target vehicle speed and gear.

The embodiment of the invention provides an automatic variable speed control system of a pure electric vehicle and a pure electric vehicle. The automatic variable speed control system comprises an entire vehicle controller, a drive motor, a transmission, a power assembly controller and a gearshift, wherein the entire vehicle controller is used for generating control information, and the control information comprises a target torque and a target gear; the power assembly controller is used for obtaining the control information, controlling the target torque to control the drive motor to output a torque and a rotating speed, and controlling the gearshift to drive the transmission to adjust a gear according to the target gear; and the drive motor drives the transmission to operate according to the torque and the rotating speed. According to the technical scheme provided by the embodiment of the invention, requirements of large starting torque of the vehicle, high motor operating efficiency and wide working range can be satisfied.

A powertrain control selects engine operating points in accordance with power loss minimization controls. Power loss contributions come from a variety of sources including engine power losses. Engine power losses are determined in accordance with engine operating metrics such as power production per unit fuel consumption and power production per unit emission production. Engine power losses are combined in accordance with assigned weighting into a single engine power loss term for use in the power loss minimization control and operating point selection.

The invention discloses a power battery insulation detection system and a real-time display method. The power battery insulation detection system comprises a power battery system, a voltage dividing system, a fault judging system, a voltage stabilizing system, an insulation fault equivalent resistor, a comparison output system, a voltage detection system, a table look-up part and a real-time display part. The detection method is that insulation fault state between the power battery system and a low voltage system is detected in dynamic and real-time mode by detecting changes of nodal voltage inside the judging system, and further the comparison output system outputs insulation state alarm signals of the power battery system so that a power assembly control system can make corresponding treatment timely and safety of humans and vehicles is ensured. Furthermore, current insulation resistance can be calculated in table look-up mode by detecting key node pressure of an insulation detection circuit and also can be displayed in real time.

A powertrain control system is provided that includes an engine having multiple cylinders. A controller selectively activates the cylinders to provide a cylinder combination having a desired power displacement. In one example powertrain control system, the controller selectively activates the cylinders between a V-8 and V-4 mode. An exhaust system having a valve and an electrical actuator selectively electrically actuates the valve in response to the controller between multiple positions. The electrical actuator moves the valve from an open position in V-8 mode to a partially closed position in V-4 mode to increase back pressure and reduce NVH issues in V-4 mode. A muffler includes a housing having an exhaust passage. The valve is supported by the housing and arranged in the exhaust passage. The valve is moveable between multiple positions for tuning the muffler. The electrical actuator is supported by the housing to actuate the valve between the multiple positions.

Methods and systems are provided for expediting updating a vehicle's powertrain calibration table. The table is updated with data generated on-board a given vehicle while being matured with data downloaded from a cloud-based network, the downloaded data generated on-board one or more other vehicles having matching powertrain characteristics. Regions of a vehicle's calibration table where sufficient data is not generated on-board a given vehicle is populated with data from one or more other vehicles having sufficient data for those corresponding regions.