Disclosed are a method of improving fuel efficiency of a fuel cell electric vehicle, and an apparatus and a system therefor. The method includes collecting navigation information and vehicle speed information, calculating a coasting line when a specified event point is detected based on the navigation information, determining whether deceleration is necessary by comparing a current traveling speed with a coasting line speed corresponding to a current location, and changing a criterion for determining whether to enter a fuel cell stop (FC STOP) state when the deceleration is necessary as a determination result.

An apparatus for controlling operation of an electric vehicle of the present invention may comprise: an operation information collection unit that collects parameters for operation of an electric vehicle; a battery information collection unit that collects information on battery operation and condition; a manipulation information collection unit that collects manipulation information of a driver on the electric vehicle; a motor control means for driving a driving motor of the electric vehicle according to the collected manipulation information from the driver; and a derating adjustment unit that performs derating for reducing a ratio of an amount of power of the driving motor to a throttle angle, according to the collected information.

An apparatus for controlling a vehicle includes a battery controller, a driving controller, and a notification device, wherein the battery controller may obtain state information of a battery, calculate remaining energy of the battery, and determine whether energy of the battery is excessively consumed, and the driving controller may obtain the remaining energy and route information, calculate a remaining driving distance, and determine a fuel efficiency deterioration section.

Disclosed is a management device suitable for managing an electric propulsion assembly of a vehicle. The management device includes: a communication interface suitable for receiving an elevation profile for a predetermined route that the vehicle is intended to take; and a determination module configured to determine, based on the elevation profile, for each of one or more points of the route, a maximum electric power that the electrical energy storage device is configured to supply to the motor at the corresponding point. The management device is further configured to interact with the electric propulsion assembly such that, for each point of the route for which the maximum electric power is determined, the electric power actually supplied by the electrical energy storage device to the motor is less than the corresponding maximum electric power.

An acceleration slip regulation method includes determining a current control phase of a vehicle in an acceleration slip regulation state, determining a current road surface adhesion coefficient of the vehicle, determining, based on the current control phase and the current road surface adhesion coefficient, maximum torque allowed by a road surface, obtaining demand torque received by a drive motor of the vehicle and a wheel slip rate of the vehicle, and outputting adaptive feedforward torque for acceleration slip regulation based on the maximum torque allowed by the road surface, the demand torque, and the wheel slip rate, where the adaptive feedforward torque is used to perform the acceleration slip regulation on the vehicle.

A braking method for a vehicle is provided. The method includes the following steps: obtaining a first state information of the vehicle, where the first state information includes a vehicle mass and a deceleration required by braking; calculating a braking torque required by the vehicle according to the first state information, and controlling an output of an electric braking torque according to the braking torque required by the vehicle; obtaining a current vehicle speed of the vehicle and a maximum electric braking exit speed; and; controlling, if the deceleration required by braking of the vehicle changes to zero, the vehicle to unload the electric braking torque when the current vehicle speed is less than the maximum electric braking exit speed. A braking device for a vehicle and a vehicle are further provided.

Demand associated with one or more vehicle systems can be predicted for a vehicle traversing a planned travel path. Based at least in part on the predicted demand, a control strategy can be determined for controlling operation of the one or more vehicle systems to optimize for efficiency, cabin temperature, component temperature, passenger comfort, etc. The one or more vehicle systems can be controlled, based at least in part on the control strategy, at least one of before the vehicle traverses the travel path, or as the vehicle traverses the travel path.

An ECU of a fuel cell vehicle determines whether the vehicle travels on an uphill road or not. When determining that the vehicle travels on the uphill road, the ECU performs at least one of a temperature reduction control for reducing the temperature of a fuel cell stack and a humidification control for increasing the water content of the fuel cell stack, by the time the vehicle reaches the uphill road.

Systems and methods are provided herein for controlling the speed on each wheel of a vehicle, possibly operating a vehicle in a speed control mode. In response to receiving input to engage speed control mode and receiving an accelerator pedal input, the system determines a target wheel speed based on the accelerator pedal input, monitors wheel speed of each of a plurality of wheels and determines, for each monitored wheel, a difference based on the monitored wheel speed and the target wheel speed. A torque is provided to each of the plurality of wheels based on the respective difference to achieve the target wheel speed.

Techniques regarding parameterizing energy consumption of an electric vehicle are provided. For example, one or more embodiments described herein can comprise a system, which can comprise a memory that can store computer executable components. The system can also comprise a processor, operably coupled to the memory, and that can execute the computer executable components stored in the memory. The computer executable components can comprise a vehicle state estimation component that determines an operating condition experienced by a vehicle while traveling a route. Further, the system can comprise an energy consumption component that parametrizes an amount of energy expended by the vehicle while traveling the route based on a loss table that is populated with an energy consumption value derived from historic operation of the vehicle at the operating condition.