Hyundai Motor Company

Kia Corporation

Kia Motors Corporation

Ho Wook Lee

Jeong Soo Eo

Yong Hwa Lee

Jae Chang Kook

Ji Won Oh

Sang Wook Han

Sangwook Han

Ki Soo Park

Han Seon Ga

Gwi Chul Kim

Woo Pyeong Seo

Jin Seok Song

So Ra Jang

Kyung Ho Yoon

A torque control method in a drive system of an electric vehicle includes determining, by a controller, a torque control mode corresponding to a current vehicle driving state among a plurality of preset torque control modes; and transitioning, by the controller, from a current torque control mode to the determined torque control mode, in which the transitioning to the determined torque control mode comprises performing, by the controller, limitation to a torque slope using a torque command at an immediately previous control cycle with respect to a front-wheel torque command that is a command for a front-wheel motor and a rear-wheel torque command that is a command for a rear-wheel motor, in a transient section where transition between torque control modes occurs.

Torque control method in drive system of electric vehicle

In a torque control method for a drive system of an electric vehicle configured for generating torque by evading a backlash band to prevent occurrence of backlash in the drive system, torque control modes include a contra-directional distribution mode in an acceleration direction in which a front-wheel torque command is determined to be a maximum front-wheel torque threshold value set as a negative (−) torque value in a regenerative direction and a rear-wheel torque command is determined to be a positive (+) torque value in a driving direction and a contra-directional distribution mode in a regenerative direction in which the rear-wheel torque command is determined to be a minimum rear-wheel torque threshold value set as a positive (+) torque value in the driving direction and the front-wheel torque command is determined to be a negative (−) torque value in the regenerative direction thereof.

Torque control method for drive system of electric vehicle

A an apparatus of controlling a braking of a vehicle traveling in track mode includes a driving information detector configured to detect a braking request from a driver while the vehicle is driving; and a vehicle controller configured to, when the braking request is detected, control the braking of the vehicle according to a total required torque in response to the detected braking request, wherein the total required torque is a sum of a regenerative braking torque by a motor of the vehicle and a friction braking torque by a brake of the vehicle, wherein the vehicle controller is configured to decrease braking force by friction braking by relatively decreasing friction braking torque by increasing the regenerative braking torque of the total required torque, and wherein the regenerative braking torque is greater than a regenerative braking torque in non-track mode.

Apparatus, method and computer readable storage medium for controlling braking of vehicle

An apparatus for calculating torque of a vehicle for exiting drift driving may include a processor and a non-transitory computer-readable storage medium storing a program which, when executed by the processor, causes: determining a driver's intention to exit drift driving based on an opening degree of an accelerator pedal and a steering angle; and calculating target torque of a front wheel motor based on the opening degree of the accelerator pedal when the driver's intention to exit drift driving is determined.

Apparatus, method and computer readable storage medium for computing torque of electric vehicle for exiting drift driving

A control method of vehicle handling includes determining that a driving state of a vehicle is an understeer state from an electronic stability control, determining a position of an accelerator from an accelerator position sensor in response to determining that the driving state of the vehicle is the understeer state, and controlling a motor torque of a front wheel side of the vehicle to be smaller than a motor torque of a rear wheel side of the vehicle according to the position of the accelerator.

Control method of vehicle handling

The present invention relates to a system and a method for controlling the thrust force of a belt of a CVT. The method includes: determining whether a rough road condition is satisfied; continuously calculating, in a case that the condition is satisfied, a thrust force for a first predetermined time by gradually increasing a safety factor to a safety factor of the rough road condition; increasing the thrust force of the belt to the calculated thrust force; and maintaining the thrust force according to the safety factor of the rough road condition for a second predetermined time. With that method, belt slip can be prevented and fuel efficiency can be improved.

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Seoul, South Korea

Ho Wook Lee