B60W2520/263

Predictive engine control methodology for managing wheel slip in through-the-road hybrid vehicles

Techniques for managing wheel slip in a through-the-road hybrid vehicle comprise detecting a front wheel slip event based on measured rotational speeds of front wheels, determining a likelihood of a subsequent rear wheel slip event, when the front wheel slip event has ended and the likelihood of the subsequent rear wheel slip event satisfies a calibratable threshold, adjusting a front/rear axle torque split and pre-loading at least one of an engine and a belt-driven starter generator (BSG) unit coupled to a crankshaft of the engine to compensate for a torque drop that is predicted to occur during the rear wheel slip event, and re-adjusting the front/rear axle torque split and pre-unloading at least one of the engine and the BSG unit such that a drop in torque output at a front axle aligns with an end of the rear wheel slip event.

System and method to estimate maximum lateral acceleration and yaw rate in limit handling maneuvers in low-friction surfaces

Systems and methods for vehicle motion control are provided. The method includes: calculating a correction factor using one of three different sets of operations when the vehicle is performing a limit handling maneuver, wherein the correction factor is calculated using a first set of operations when the vehicle is operating in an understeer state, calculated using a second set of operations when the vehicle is operating in an oversteer state, and calculated using a third set of operations when the vehicle is operating in a neutral steer state; adjusting a desired lateral acceleration and a desired yaw rate by applying the correction factor to account for a reduced level of friction experienced by the vehicle when traveling on a non-ideal friction surface; calculating optimal control actions based on the adjusted desired lateral acceleration and adjusted desired yaw rate; and applying the optimal control actions with vehicle actuators during vehicle operations.

System and method for coordinating independent axles for continuous wheel slip control

Methods and system are described for controlling wheel slip of a four wheel drive vehicle. The methods and system may be applied to an electric vehicle or a hybrid vehicle. The method and system provide for operating vehicle propulsion sources in speed and torque control modes to manage wheel slip.

Control apparatus
11654892 · 2023-05-23 · ·

A control apparatus includes a controller. Upon a slip of a front wheel of a vehicle, the controller executes torque adjustment control that reduces a driving torque of the front wheel of the vehicle and adjusts a driving torque of a rear wheel of the vehicle to equal to or less than the driving torque of the front wheel.

Apparatus for controlling motor of a vehicle and method thereof

A vehicle motor control apparatus includes: a processor configured to determine whether a state of a vehicle is an over-steer state or an under-steer state, to determine a driving control mode or a braking control mode of a motor based on a determination result of the state of the vehicle, to calculate a target yaw moment of based on a tire force by using the over-steer state or the under-steer state, and to determine a motor control amount that follows the target yaw moment; and a storage configured to store data and algorithms driven by the processor.

LOW SPEED CORNERING STIFFNESS DERATE USING A DYNAMIC VEHICLE MODEL

Systems and methods are provided for predicting a vehicle's motion. It is determined that speed of the vehicle is below a threshold speed. A derated tire cornering stiffness value that is less than a nominal cornering stiffness value is obtained. The vehicle's motion is predicted based on a dynamic model using the derated tire corning stiffness value.

Vehicle control apparatus
11801826 · 2023-10-31 · ·

A vehicle control apparatus to be applied to a vehicle includes a first traveling motor, a second traveling motor, and a control system. The control system estimates a first friction coefficient between a first wheel and a road surface and a second friction coefficient between a second wheel and a road surface. When the vehicle starts in a situation in which any of the first and second friction coefficients is less than a first threshold and a difference between the first and second friction coefficients is greater than a second threshold, the control system increases a power running torque of the first traveling motor after elapse of a first delay time after increasing a power running torque of the second traveling motor, if the first friction coefficient is smaller than the second friction coefficient. The first delay time is set on the basis of the first friction coefficient.

Control apparatus of hybrid leaning vehicle

A control apparatus of a hybrid leaning vehicle includes: a travel mode request section that requests one travel mode selected from a plurality of travel modes including a first travel mode in which an engine is operated with a clutch disengaged and a second travel mode in which the engine is operated with the clutch engaged; and a travel mode setting section. When the travel mode request section requests the second travel mode during travel in the first travel mode, the travel mode setting section, upon determining that a shock accepting condition is satisfied, sets the second travel mode as the travel mode to be executed and, upon determining that the shock accepting condition is not satisfied, prohibits the second travel mode from being set as the travel mode to be executed.

Driving control method and system for vehicle

A method and a system for controlling driving of a vehicle according to a driving intent of a driver in a sports mode, may include determining a situation in which whether sporty driving is required for the vehicle due to an output value reflecting a driving state of the vehicle which is driving in a sports mode, and, when the situation is determined as requiring the sporty driving, controlling, by the controller, the clutch mechanism to release a coupling between the front wheel and the front wheel drive motor for the vehicle to drive in a rear wheel drive manner, and the system to which the method is applied.

APPARATUS FOR CONTROLLING MOTOR OF A VEHICLE AND METHOD THEREOF
20220080838 · 2022-03-17 ·

A vehicle motor control apparatus includes: a processor configured to determine whether a state of a vehicle is an over-steer state or an under-steer state, to determine a driving control mode or a braking control mode of a motor based on a determination result of the state of the vehicle, to calculate a target yaw moment of based on a tire force by using the over-steer state or the under-steer state, and to determine a motor control amount that follows the target yaw moment; and a storage configured to store data and algorithms driven by the processor.