B60L2250/26

LIQUID-COOLED INTEGRATIVE POWER SYSTEM FOR ELECTRIC FORKLIFT AND CONTROL METHOD THEREOF
20230129714 · 2023-04-27 · ·

The present invention discloses a liquid-cooled integrative power system for electric forklift and a control method thereof. It includes an integrated transmission gearbox, an integrated motor controller, an oil pump and a vehicle controller. The integrated transmission gearbox includes a drive motor transmission mechanism and an oil pump motor transmission mechanism. The integrated motor controller includes a control unit for a drive motor and a control unit for an oil pump motor. The integrated transmission gearbox, the integrated motor controller, the drive motor, the oil pump motor, the oil pump and the vehicle controller are completely integrated and mounted to form the liquid-cooled integrative power system for electric forklift. The vehicle controller comprehensively controls the integrative power system.

Battery electric vehicle (BEV) torque split control

A controller is provided for a vehicle having front and rear axles, each axle having two wheels, and first and second propulsion units. The controller controls the first and second propulsion units to generate a combined torque with reference to a total requested torque. The controller is configured to: receive a torque request signal; receive traction signals indicating available traction at at least one wheel; determine a traction torque range defined by a maximum and minimum torque for at least one of the at least first or second propulsion units in dependence on one or more of the traction signals; determine a proposed distribution of torque between each of the at least first and second propulsion units with reference to the total requested torque; and determine a proposed torque to be generated by each of the at least first and second propulsion units based on the proposed distribution of torque.

METHODS AND APPARATUS FOR VEHICLE TURNING IN CONFINED SPACES

Methods, apparatus, systems, and articles of manufacture for vehicle turning in confined spaces are disclosed herein. An example apparatus disclosed herein instructions, at least one memory, a processor to execute the instructions to operate a first brake of a first wheel of a vehicle, operate a second brake of a second wheel of the vehicle, determine a frictional coefficient of a driving surface of the vehicle by rotating a third wheel of the vehicle, determine based on the frictional coefficient, if a turn command can be conducted by the vehicle, and when the turn command can be conducted, conduct the turn command.

Braking control apparatus with adjustable power regeneration in accordance with relative distance from a preceding vehicle

A braking control apparatus to be installed an electric vehicle includes an acceleration and deceleration operation member, a controller, and a recognizer. The acceleration and deceleration operation member receives an acceleration request in accordance with an operation amount in a first direction from a neutral position, and receive a deceleration request in accordance with an operation amount in a second direction from the neutral position. The controller controls an amount of power regenerated by a rotary electric machine driven by wheels in accordance with the operation amount in the second direction. The recognizer recognizes a preceding vehicle traveling ahead of the electric vehicle. Upon detection of the preceding vehicle at a relative distance from the electric vehicle that is equal to or less than a threshold, the controller performs braking suppression control to decrease the amount of power regenerated in accordance with the operation amount in the second direction.

Vehicle

A vehicle includes a front-wheel motor, a rear-wheel motor, a temperature detector, and a distribution ratio controller. The front-wheel motor drives a front wheel. The rear-wheel motor drives a rear wheel. The temperature detector detects a temperature of the front-wheel motor and a temperature of the rear-wheel motor. If one of the temperature of the front-wheel motor and the temperature of the rear-wheel motor exceeds a second temperature, the distribution ratio controller decreases a torque of one of the front-wheel motor and the rear-wheel motor the temperature of which is higher than the other and increase a torque of the other. The second temperature is a value set lower than a first temperature that is a threshold used for determination as to whether output of the front-wheel motor or output of the rear-wheel motor is to be restricted.

One-pedal drive system for a vehicle

A vehicle includes an accelerator pedal, an electric machine, and a controller. The electric machine is configured to propel and brake the vehicle according to a one-pedal driving operation. The controller is programmed to, in response to depressing the accelerator pedal, command a desired torque to the electric machine. The controller is further programmed to, adjust the desired torque based on a gradient of a road surface that the vehicle is positioned on. The controller is further programmed to, in response to movement of the electric machine in a direction that is opposite to a desired direction while the adjusted desired torque is being applied, increase the adjusted desired torque by a compensation torque such that movement of the electric machine transitions to the desired direction.

METHOD AND DEVICE FOR PARKING CONTROL, VEHICLE CONTROLLER, AND NEW-ENERGY VEHICLE

A method for parking control is provided in the present application, which includes the following steps: determining whether a single-pedal mode is activated determining whether conditions for deceleration control are met when the single-pedal mode is activated; controlling the new-energy vehicle to decelerate when the conditions for deceleration control are met; determining whether conditions for sending a brake request to a motor controller are met during a process of controlling the new-energy vehicle to decelerate; sending the brake request to the motor controller when the conditions for sending a brake request to the motor controller are met; and sending a parking request to an electronic handbrake when the new-energy vehicle is in the brake mode and the speed of the new-energy vehicle is smaller than the third preset value for a third preset time, enable the new-energy vehicle to enter in a parking mode.

METHOD AND APPARATUS FOR CONTROLLING ENERGY RECOVERY, CONTROLLER, AND ELECTRIC VEHICLE
20220324331 · 2022-10-13 ·

The present application provides a method and an apparatus for controlling energy recovery, a controller, and an electric vehicle. The method includes: determining whether an electric vehicle is in a coasting energy recovery mode or a braking energy recovery mode; acquiring an energy recovery torque of the electric vehicle if the electric is in the coasting energy recovery mode or the braking energy recovery mode; and sending the energy recovery torque to a motor controller of the electric vehicle, whereby allowing the motor controller to control a motor of the electric vehicle to charge a battery of the electric vehicle. The method provided by embodiments of the present application can solve the problem that the method for controlling energy recovery in the prior art is difficult to reach a maximum energy recovery.

Adaptation of a Propulsion Profile of a Motor Vehicle Driven by an Electric Motor
20230122737 · 2023-04-20 ·

The invention relates to a device for determining a propulsion profile to be applied during the operation of an electric drive motor of a motor vehicle driven by an electric motor, wherein in each case a manifestation to be applied of one or more propulsion parameters can be saved in the propulsion profile for different propulsion actuator presets by a vehicle user, and the device is designed to determine the propulsion profile to be applied with the aid of at least one propulsion curve which in each case assigns different manifestations of the propulsion parameter or parameters to different propulsion actuator presets.

VEHICLE AND VEHICLE CONTROL METHOD

An ECU of a vehicle executes a regeneration process to control an electric motor so as to generate regenerative torque during deceleration caused by an accelerator OFF. The ECU executes a torque gradual decrease process to decrease the regenerative torque in a wheel slip detection state more gradually at a time when a brake pedal is depressed after a start of the deceleration and ABS control is not activated than a time when the brake pedal is not depressed after the start of the deceleration. The ECU executes a hydraulic pressure increase process to increase the upstream hydraulic pressure such that, when the ABS control is activated while the brake pedal is depressed after the start of the deceleration, the upstream hydraulic pressure has a value necessary for generating a braking torque having a magnitude according to the regenerative torque generated at a start of the ABS control.