Patent classifications
B60L2240/423
Electrified vehicle system and control method of controlling electrified vehicle
An electrified vehicle system includes an electric motor coupled to a drive wheel via a plurality of power transmission components and a control device. The control device is configured to act as: a feedforward control section configured based on a transfer function simulating vibration transmission characteristics of a power transmission system, receiving as an input a required torque of the electric motor from a driver, and outputting a base command torque of the electric motor; a timing estimation section estimating, based on information on the power transmission system, a timing at which a backlash between the plurality of power transmission components is eliminated; and a torque correction section applying, to the base command torque, a correction torque for reducing a vibration generated in the power transmission system due to elimination of the backlash, in response to an arrival of the timing estimated by the timing estimation section.
Model-Based Predictive Regulation of an Electric Machine in a Drivetrain of a Motor Vehicle
A processor unit (3) is configured for executing an MPC algorithm (13) for model predictive control of an electric machine (8) of a drive train (7) of a motor vehicle (1). The MPC algorithm (13) includes a longitudinal dynamic model (14) of the drive train (7) and a cost function (15) to be minimized. The cost function (15) includes a first term, a second term, and a third term. The processor unit (3) is configured for determining an input variable for the electric machine (8) by executing the MPC algorithm (13) as a function of the first, second, and third terms such that the cost function is minimized.
Abnormality diagnosis apparatus and abnormality diagnosis method
An abnormality diagnosis apparatus includes: a friction identification unit that calculates a friction parameter that is a parameter used for calculation of frictional force of a power transmission mechanism connected to a motor; a model torque calculation unit that calculates model torque by performing a process of calculating an estimated value of torque of the motor by using a set value calculated in advance and the friction parameter; and an abnormality determination unit that diagnoses whether the power transmission mechanism is abnormal, on the basis of a result of comparison between the model torque and a motor torque detected by a motor torque detection unit.
Regenerative braking control method and regenerative braking control device
A regenerative braking control method and a regenerative braking control device of the present invention control a drive source that generates a regenerative brake force in such a manner that an upper limit of regenerative deceleration when a driver executes manual control becomes smaller than an upper limit of regenerative deceleration when automatic control is executed.
Vehicle equipped with electric motor and method of outputting warning for the same
A vehicle provided with an electric motor configured for outputting warning through torque control of the motor and a method of outputting warning for the same, may include: recognizing, by a controller, a stop point or a deceleration section where a pause or deceleration of the vehicle is required or recommended; setting, by the controller, a virtual road surface facility based on the stop point or a start point of the deceleration section; outputting, by the controller, information on a set position of the set virtual facility or a distance remaining from the vehicle to the set position; and implementing, by the controller, driving feeling passing through the set virtual road surface facility as a pitching motion of the vehicle using a torque control of the electric motor according to a vehicle speed when the electric vehicle passes the set position.
VEHICLE ENERGY MANAGEMENT SYSTEM AND RELATED METHODS
A through the road (TTR) hybridization strategy is proposed to facilitate introduction of hybrid electric vehicle technology in a significant portion of current and expected trucking fleets. In some cases, the technologies can be retrofitted onto an existing vehicle (e.g., a truck, a tractor unit, a trailer, a tractor-trailer configuration, at a tandem, etc.). In some cases, the technologies can be built into new vehicles. In some cases, one vehicle may be built or retrofitted to operate in tandem with another and provide the hybridization benefits contemplated herein. By supplementing motive forces delivered through a primary drivetrain and fuel-fed engine with supplemental torque delivered at one or more electrically-powered drive axles, improvements in overall fuel efficiency and performance may be delivered, typically without significant redesign of existing components and systems that have been proven in the trucking industry.
Method for controlling driving force of vehicle
A method for controlling driving force of a vehicle includes: determining, by a controller, a basic torque command on the basis of vehicle operation information collected while a vehicle is driven; obtaining, by the controller, tire vertical load information and vehicle pitch motion information in real time during the vehicle is driven on the basis of the information collected from the vehicle; determining, by the controller, a final torque command using the determined basic torque command and the obtained tire vertical load information and vehicle pitch motion information; and controlling, by the controller, a torque output of a driving device configured to drive the vehicle according to the determined final torque command.
NESTED CONTROL LOOP STRUCTURE FOR HYBRID PROPULSION SYSTEM
In accordance with at least one aspect of the present disclosure, there is provided a method for controlling power in an aircraft. The method includes, monitoring an electric energy storage module electrically connected to an electrical bus for an exceedance of a first current limit and monitoring a generator module connected to the electrical bus for an exceedance of a second current limit. If the current limit of either of the electric energy storage module or the generator module is exceeded by a predetermined exceedance amount, the method includes reducing a power consumption for an electric machine by a predetermined bias until the exceedance of the electrical energy storage and the exceedance of the generator module are both less than or equal to zero.
SYSTEM AND METHOD FOR CONTROLLING ELECTRIC MOTORS TO FUNCTION AS A VIRTUAL ELECTRONIC LOCKING DIFFERENTIAL
A system includes a reference speed module and a motor control module. The reference speed module is configured to determine a reference speed range based on a speed of a left wheel of a pair of front or rear wheels of a vehicle and a speed of a right wheel of the pair of front or rear wheels. The right wheel is disconnected from the left wheel. The motor control module is configured to control at least one of a first electric motor and a second electric motor based on the reference speed range. The first electric motor is connected to the left wheel. The second electric motor is connected to the right wheel.
ELECTRIC VEHICLE
An electric vehicle includes a yaw rate sensor and a processor. The yaw rate sensor is configured to measure a yaw rate of a vehicle body in a vehicle. The processor is configured to control respective torques of right and left rear wheels coupled to respective motors of the electric vehicle. In a case where a mode that allows the right and the left rear wheels to slip is selected as a traveling mode of the vehicle, the processor is configured to perform a control to suppress one of the torques of the right and the left rear wheels on a basis of the yaw rate measured by the yaw rate sensor.