71 results about "Powertrain control module" patented technology

A hill holding function of a hybrid electric vehicle is initiated when the powertrain control module determines that a hill holding condition exists. In the hill holding condition, the electro-hydraulic brakes will provide brake torque to each wheel and the powertrain control module will turn off the internal combustion engine. The system can also detect a two footer condition where the vehicle operator requests both acceleration torque and brake torque simultaneously. The hill holding function of the hybrid electric vehicle in a two footer situation will apply the electro-hydraulic brakes and turn off the internal combustion engine. When the operator requests acceleration in either the hill holding or the two footer condition, the electric brake controller will transition the release of the electro-hydraulic brakes and the powertrain control module will turn on the internal combustion engine.

An analysis tool which extracts all the available parameter identifications (i.e. PIDS) from a vehicle's power train control module for diagnostic decisions. This is done by checking these PIDS and other information (e.g., calculated PIDS, Break Points, charts and algorithms) in three states; key on engine off, key on engine cranking, key on engine running. In all three modes the tool is comparing the live data from PIDS and voltage to the other information (e.g, Break Points). If any of this data are outside the programmed values a flag is assigned to the failure or control problem. The relationship between a particular PID and its associated preprogrammed value(s) may be indicated by a light. The depth of the problem (if any) is conveyed by the color of the light. Also included are tests / charts for fuel trim, engine volumetric efficiency, simulated injector, power, catalyst efficiency, and engine coolant range.

An automotive regenerative and friction braking system uses a separate brake system control module and a powertrain control module. The brake system control module normally operates the friction and regenerative brakes in a coordinated, or series, configuration. In the event that the brake system control module becomes inoperative, the powertrain control module will operate the regenerative braking system in a parallel, or independent, configuration.

A voting strategy is used to determine the mode state of a transmission when a vehicle is restarted. A Powertrain Control Module, a Transmission Range Control Module, and a Gear Shift Module communicate through a communication network during execution of the voting strategy. Each module stores a remembered mode state (Normal, Neutral Hold, Neutral Tow, etc.) of the transmission in non-volatile memory. Upon module initialization, the Powertrain Control Module will compare its own remembered mode state of the transmission with the remembered mode state reported by the other two modules. A basic voting strategy is that if two of the three modules report the same remembered mode state then the Powertrain Control Module changes the transmission to that same mode state.

The invention relates to a dual frequency conversion control system. The system comprises a first motor control module, a second motor control module and a micro-programmed control unit (MCU) master control module, wherein the first motor control module is used for controlling a working state of a first motor for performing 180-degree direct current frequency conversion control; the second motor control module is used for controlling a working state of a second motor for performing 180-degree direct current frequency conversion control; the MCU master control module generates a first group ofpulse width modulation (PWM) control signals and a second groups of PWM control signals, controls the first motor control module according to the first group of PWM control signals and controls the second motor control module according to the second group of PWM control signals; and the first group of PWM control signals and the second group of PWM control signals comprise 6 paths of PWM signals respectively. In a power system in which two motors are required to be simultaneously applied, one MCU master control module is adopted to simultaneously control the two motors for performing 180-degree direct current frequency conversion control; and the system has the advantages of low power consumption, lower noise, higher running stability of the motors and lower cost.

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.

An apparatus in a mechanical returnless fuel system is provided that includes a fuel pump motor for providing fuel to a powertrain system. A powertrain control module provides an activation signal for activating the fuel pump motor. A restraint control system includes a restraint control module for providing a disabling signal for disabling the fuel pump motor in response to a vehicle impact. An electronic relay switch is adapted for coupling to the fuel pump motor to selectably energize the fuel pump motor according to a conductive state and a non-conductive state of the electronic relay switch. A relay controller packaged with the electronic relay switch is responsive to the activation signal and the disabling signal for selecting the conductive state according to the activation signal when the disabling signal is not present and selecting the nonconductive state when the disabling signal is present.

A method for a vehicle, comprising: following a vehicle-off event, waking a powertrain control module based on a comparison of an ambient temperature and a bulk fuel temperature; and then initiating an evaporative emissions system leak test. In this way, the evaporative emission leak test may be initiated without waking the powertrain control module arbitrarily. By waking the powertrain control module and initiating the test based on ambient and bulk fuel temperatures the execution rate of the leak test can be increased.

An anti-lock braking system (ABS) calculates driven wheel speed without any sensors on the driven axle assembly. A powertrain control module (PCM) receives signals from an output shaft speed (OSS) sensor and adds the speed and axle ratio information to a control network bus. Access to the CAN bus is provided to enable calculation of the rear wheel speed based on such information so that ABS may implement anti-lock braking functionality by taking into account such information.

An electronic module configured to suppress electromagnetic radiation is disclosed. The electronic module has a plurality of electronic components disposed therein. The module includes a module housing, a circuit board, and a plurality of capacitors. The module housing is made of an electrically conductive material. The circuit board has a ground plane and is fixed to the module housing. The plurality of capacitors are coupled at first end to the ground plane and at a second end to the housing. Further, the capacitors are connected electrically in parallel and are uniformly spaced within the electronic module.

The invention discloses a joint simulation method of a hybrid electric vehicle control strategy. The method comprises the following steps: (1) establishing a whole vehicle simulation model in cuse software, wherein the hardware modules comprise tires, brakes, a differential mechanism, a speed reducer, a gearbox, a driving motor, a generator, an engine and a clutch, the software modules comprise acab module, an ASC antiskid module, a gear shifting program module and a gearbox control program module, and the engine and motor control module is a matlab _ DLL module; (2) establishing a control strategy model in a matlab _ DLL module, simulating VCU control of a whole vehicle, accessing a vehicle speed signal, a clutch signal and a whole vehicle required torque power signal through a matlab interface, and outputting control signals of an engine and a motor; and (3) receiving signals of a motor and an engine in the whole vehicle simulation model from a matlab interface, performing simulation based on two working conditions of NEDC and WLTC, and calculating oil consumption and power consumption per hundred kilometers.

An electro-thermal wing ice protection solution controller for managing and controlling electrical power generated to heat and de-ice the wing of an aircraft. The system is comprised of a number of power control modules (PCMs) and at least one master control unit (MCU). These elements can be stacked together and mounted into rack systems in order to provide scalable organized power distribution for a wing de-icing and ice protection system.

A degrader and a diagnostic kit for an electronically-controlled fuel-injected internal combustion engine includes means adapted to interrupt a control signal from an engine management computer or powertrain control module (PCM) (15) to a fuel injector (11). It comprises a current sensor (17), adapted to measure the duration of a pulsed supply of fuel to the injector, a switching block (18) to interrupt the supply if required, and a microprocessor (22) to actuate the switching block and to produce a signal which may be used to control injection of fuel into the engine.

An anti-lock braking system (ABS) calculates driven wheel speed without any sensors on the driven axle assembly. A powertrain control module (PCM) receives signals from an output shaft speed (OSS) sensor and adds the speed and axle ratio information to a control network bus. Access to the CAN bus is provided to enable calculation of the rear wheel speed based on such information so that ABS may implement anti-lock braking functionality by taking into account such information.

The invention belongs to the vehicle control unit field. The vehicle control unit comprises a central processor; the central processor is connected with a power source module, an analog quantity acquisition module, a switching quantity acquisition module, a frequency quantity acquisition module, a low-end driving module, a motor control module, a motor current-detection module and a CAN communication module through signal lines respectively. According to the vehicle control unit, acquired signals are processed through the analog quantity acquisition module, the switching quantity acquisition module and the frequency quantity acquisition module; processed signals are transmitted to the central processor; the central processor communicates with a vehicle CAN communication module through the CAN communication module; the electric loads of relays work according to requirements under the control of the central processor; the motor control module can realize gear selection and gear shift under the control of the central processor; and therefore, the vehicle control unit can obtain the running state of a vehicle at any time in a driving process and accurately acquire the operating information of a driver, and analyzes the operating conditions of various components of the vehicle, so as to coordinate the actions of various mechanisms. The vehicle control unit has the advantages of simple structure, safety and reliability, and can assist in reducing cost.

A system and method for controlling a transmission with an automotive vehicle is disclosed. The automotive vehicle includes a powertrain control module (PCM) and a governor pressure sensor coupled to the PCM. The system and method comprises a controller system for sensing at least one parameter of the vehicle. The controller system modifies an excitation voltage to the governor pressure sensor based upon the at least one parameter. A system and method in accordance with the present invention compensates the erroneous shift points in a transmission by ramping the excitation voltage based upon engine and vehicle parameters. In so doing, upshift and downshift points are corrected. Furthermore, the settings for the excitation voltage range can be user-specified to accommodate a variety of vehicles.

The invention provides a vehicle control method and a power system for hybrid vehicles. The method includes the following steps: start request information can be respectively sent to a vehicle controlunit (VCU), a motor control module (ENG) and an engine control module (ECM) after a vehicle body control module (BCM) detects the start signal of a hybrid vehicle; when a backup module is set in oneof the BCM, ENG and ECM, a self-examination command can be respectively sent to a transmission control unit (TCU), a battery management module (BMS) and a secondary motor controller if the backup module does not receive feedback information generated by the VCU based on the start request information in the preset time; and the backup module can send a start instruction to control the hybrid vehicle to start when judging that the hybrid vehicle meets starting conditions according to the received self-examination result information returned by the TCU, the BMS and the secondary motor controllerand acquiring that the code matching of the ECM and the ENG is successful through detection. The hybrid vehicle can still be driven and controlled to run to a target place when the VCU fails, and thus, the vehicle safety can be guaranteed.

The invention relates to the powertrain control systems and methods with parameter transfer between an ECM and a TCM. A control system includes an engine control module and a transmission control module. The transmission control module communicates with the engine control module via a network. The transmission control module generates at least one of a back torque signal and a first engine acceleration signal. The transmission control module transmits the at least one of the back torque signal and the first engine acceleration signal to the engine control module via the network. The engine control module controls operation of an engine based on the at least one of the back torque signal and the first engine acceleration signal.

The embodiment of the invention provides an engine electronic control unit. The engine electronic control unit can comprise a main control module, a sensor signal acquiring module, an actuator drive module and a power supply module, wherein the main control module is used for receiving a signal acquired by a sensor and outputting a control signal; the sensor signal acquiring module is used for acquiring the signal of the sensor and providing the signal for the main control module; the actuator drive module is used for driving an actuator according to a control signal received from the main control module; and the power supply module is used for respectively supplying power to the main control module, the sensor signal acquiring module and the actuator drive module. DC / DC (Direct Current / Direct Current) isolating devices are respectively configured between the power supply module and each of the modules; and signal isolating devices are respectively configured between the main control module and the actuator drive module and between the main control module and the sensor signal acquiring module. The engine electronic control unit disclosed by the invention realizes isolation between an interference source and the main control module by carrying out modular design and arranging the isolating protection devices among the modules, therefore, the external interference resistance of the engine electronic control unit is improved.

The invention relates to a control method and a control device for a steering engine. The method is characterized by comprising the following steps: acquiring a data packet sent by a main control module; identifying the data packet; executing a corresponding instruction mode according to the data packet. The control method and the control device, which are disclosed by the invention, for the steering engine can realize real-time information feedback of control information of the steering engine and support modular design, so that the intelligent and modular requirements on control over the steering engine can be met.

A plug-in hybrid electric vehicle powertrain comprises an internal combustion engine (1) and an electric vehicle traction motor, an engine lubrication oil pump (2) in fluid communication with a lubrication oil flow circuit for the internal combustion engine, an electric oil pump drive motor (3) drivingly connected to the lubrication oil pump (2), and a powertrain control module (4). The powertrain control module (4) is configured to start the electric oil pump drive motor (3) immediately upon the initial start of the vehicle.

The invention provides a locomotive control system based on a Winpac controller. The system comprises a Winpac controller, a signal input module, a signal output module, an excitation control module, and an HMI module. The signal input module, the signal output module, the excitation control module, and the HMI module are separately connected with a CPU of the Winpac controller. The method for realizing the locomotive control system based on the Winpac controller comprises the following steps of input and detection of a locomotive digital quantity and an analog quantity, and a locomotive logic control operation processing thread. The locomotive control system carries out locomotive fault judgments according to logic control operation results, and further determines whether the fault influences the normal traction of a locomotive. A constant power control output of the locomotive is maintained through controlling speed regulation of a diesel engine. Compared to locomotive control systems in the prior art, the locomotive control system based on the Winpac controller is strong in data processing and logical operation capabilities. The high-speed performance and the instantiality of the locomotive control system can be guaranteed. In addition, the demands for locomotive motion control, information transmission and network communications are satisfied.

A brake control apparatus according to an embodiment of the present disclosure includes a braking device configured to generate a braking pressure based on a hydraulic pressure to provide a main braking force to a vehicle; and a controller configured to control at least one control module selected based on the speed of the vehicle among a plurality of control modules including an engine control module (EMS) of the vehicle, a motor control module and a parking brake control module to provide an auxiliary braking force to the vehicle when the braking device is in an abnormal state.

The invention discloses a pure electric automobile gear automatic switching system. The pure electric automobile gear automatic switching system comprises a central control module, a power supply module and a gear switching module; the power supply module is correspondingly connected with the gear switching module, the central control module and a driving motor; an output end of the gear switchingmodule is connected with the driving motor; the central control module is wirelessly connected with the gear switching module; and the central control module comprises a central processor, a vehiclespeed sensor, a torque angle sensor, a signal collecting module and a communication transmission module. According to the pure electric automobile gear automatic switching system, multiple groups of information during the running of an automobile are collected by using multiple sensors and signal collecting modules; automobile total working condition data are organized by using the central processor; and then a matching relation between gear information and vehicle speed working condition data is determined by using an automatic gear shifting module; and finally, gear shifting information is automatically transmitted to the gear shifting executing mechanism to compare signals; and therefore, an operation of switching gears is carried out, the gears are automatically switched in the full process, and the operation efficiency of the driving motor is greatly enhanced.

The invention relates to a train control vehicle-mounted equipment man-computer interface scene recording and automatic touch method and system. The system comprises a main control unit, a motor control module and a mechanical hand, wherein the main control unit can select a manual executing mode or an automatic executing mode, and when the selected mode is the manual executing mode, the press key contents to be touched are selected through the interface of the main control unit, so the motor control module is started for controlling the mechanical hand to operate the train control equipment man-computer interface; in the operation process, the operation flow process is recorded into an information recording module of the main control unit and is recorded into scene data for being used for subsequent automatic operation; and when the selected mode is the automatic executing mode, the scene data input and the automatic analysis are completed through a scene analysis module in the main control unit, and next, the motor control module is automatically started for controlling the mechanical hand to do automatic operation on the train control equipment man-computer interface.