Patent classifications
B60L15/2063
ELECTRIC POWERTRAIN COOLING ASSEMBLY AND COOLING ASSEMBLY OPERATING METHOD
Methods and systems are provided for cooling a hydrogen fuel cell assembly. A vehicle system, in one example, includes a hydrogen fuel cell assembly electrically coupled to a traction motor, positioned behind a cab, and including a plurality of hydrogen storage tanks and hydrogen fuel cells. The vehicle system further includes a fuel cell cooling assembly including an inlet manifold in a deflector, where the deflector is fixedly coupled to and positioned vertically above the cab and designed to direct airflow to a fan array that is coupled to a fuel cell assembly heat exchanger, where the fan array is positioned behind inlet manifold and longitudinally offset therefrom.
ELECTRIC POWERTRAIN AND METHOD FOR OPERATION OF SAID POWERTRAIN
Methods and systems are provided for an electric vehicle powertrain. The vehicle system includes an electric distribution assembly with a junction box that is electrically coupled to a traction motor-generator and is designed to electrically coupled to, via separate circuits, a traction battery assembly and a hydrogen fuel cell assembly that is positioned behind a vehicle cab. In the system, the traction battery assembly is positioned vertically below the hydrogen fuel cell assembly.
Electric drive vehicle with low speed creep
Systems and methods to control the vehicle speed of a vehicle includes a controller communicatively coupled to a motor and a brake mechanism. The controller is structured to receive an indication of a desired change in the vehicle speed, activate a motor speed governor responsive to the brake mechanism being in a released state, adjust an output torque responsive to the vehicle speed, wherein as a load corresponding to the motor increases the vehicle speed decreases.
Control Unit for Providing a One-Pedal Feel and/or a Creep Function
A control unit for a motor vehicle which includes at least one electric machine for driving one or more wheels of the vehicle and at least one friction brake is provided. The control unit is configured to determine that a one-pedal feel function is to be provided via an acceleration pedal of the vehicle and/or a creep function is to be provided via a brake pedal of the vehicle. Additionally, the control unit is configured to operate the electric machine at least temporarily in combination with the friction brake in order to provide the one-pedal feel function and/or the creep function.
ELECTRIFIED VEHICLE ONE PEDAL DRIVE TRANSITION CONTROL
An electrified vehicle may include an electric motor coupled to a battery to propel and brake the vehicle, a pedal generating a pedal position signal including a released position signal, friction brakes configured to provide a stopping force to vehicle wheels, and a controller programmed to control the motor and the brakes in response to the pedal being released to decelerate the vehicle to a stop, and to control the motor and an engine (in hybrid vehicles) to inhibit propulsive torque to the wheels after stopping due to the pedal released position until receiving driver input indicative of a request for moving the vehicle, such as depressing the brake or accelerator pedal, or activating an automated vehicle maneuver, such as a parking maneuver, cruise control, or stop-and-go control. Inhibiting torque may include inhibiting creep torque and/or operating the electric machine to charge the battery when the engine is running.
Driving system for electric vehicle and control method thereof
A driving system for an electric vehicle may include a shift assembly receiving power from a motor, and providing a plurality of shift gears using a plurality of meshed external gear pairs, a clutch intermittently transferring power from the motor to the shift assembly, a gear lever allowing a driver to sequentially select a plurality of assigned positions that are discontinuously disposed, a position sensor detecting the assigned positions to which the gear lever sequentially moves, on the basis of continuous changes in physical quantities, a clutch actuator actuating the clutch, a shift actuator actuating the shift assembly to change gear shifts, and a controller configured for controlling the clutch actuator, the shift actuator, and the motor to change gear shifts by receiving signals from the position sensor.
Method for operating a motor vehicle and motor vehicle
A method for operating a motor vehicle including a traction electric motor, wherein the traction electric motor can be actuated for producing a creep torque that brings about a slow movement of the motor vehicle, wherein a plurality of creep torques of different magnitude can be set by a user of the motor vehicle.
Electric vehicle and control method thereof
An electric vehicle of the present disclosure includes a first electric motor, a second electric motor and a controller. The first electric motor co-rotates with a wheel when the electric vehicle is driven by only a driving torque from the second electric motor. The controller is programmed to increase or decrease the driving torque from the second electric motor in accordance with a driving state of the electric vehicle so as to shift a vehicle speed out of a predetermined low speed range when the electric vehicle is driven by only the driving torque from the second electric motor and the vehicle speed is included within the low speed range.
DRIVE FOR A MACHINE
A drive for a machine includes a computer configured to control a first electric motor for driving vehicle wheels and a second electric motor for driving a work attachment. The second electric motor is configured to drive at least one hydraulic pump with an adjustable stroke volume. A sensor is configured to detect the stroke volume of the pump. The computer processes the stroke volume to control the second electric motor.
CONTROL SYSTEM FOR A VEHICLE
The present disclosure relates to a creep speed control system for a vehicle having at least one electric motor for providing torque to at least one vehicle wheel. The system comprises an input configured to receive a current speed signal indicative of a current speed of the vehicle; a creep speed control module that is configured to activate when the current speed of the vehicle crosses a predetermined threshold above a creep speed target value; and, an output configured to, upon activation of the creep speed control module, send a creep speed control torque signal to the at least one electric motor to control the vehicle speed in dependence on the creep speed target value, wherein the creep speed control torque signal is limited to a creep speed control filtered torque value less than a creep speed control maximum torque value.