Drive force distribution control system for motor vehicle
First Claim
1. A drive force distribution control system for a motor vehicle having a pair of laterally spaced drive road wheels, comprising:
- a drive force distribution mechanism for varying a distribution ratio between drive forces to be applied to each of the laterally spaced drive wheels of said pair of drive road wheels;
steering force detecting means for detecting the magnitude and direction of a steering force manually applied to steer the motor vehicle;
lateral acceleration detecting means for detecting a lateral acceleration applied to the motor vehicle;
distribution ratio determining means for determining a target distribution ratio between drive forces to be applied to each of the laterally spaced drive wheels of said pair of drive road wheels based on the steering force detected by said steering force detecting means and the lateral acceleration detected by said lateral acceleration detecting means; and
drive means for actuating said drive force distribution mechanism so that the drive force distribution ratio between the drive force to be applied to each of the drive wheels of said pair of laterally spaced drive road wheels will be equalized to said target distribution ratio determined by said distribution ratio determining means.
1 Assignment
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Accused Products
Abstract
A drive force distribution control system for a motor vehicle controls a drive force distribution ratio between drive road wheels based on a steering torque and a lateral acceleration. The drive force distribution control system includes a drive force distribution mechanism for varying the distribution ratio between drive forces to be applied to the drive road wheels, a steering force sensor for detecting the magnitude and direction of the steering force applied to steer the motor vehicle, a lateral acceleration sensor for detecting the lateral acceleration applied to the motor vehicle, a control unit for determining a target distribution ratio between drive forces to be applied to the drive road wheels based on the steering force detected by the steering force sensor and the lateral acceleration detected by the lateral acceleration sensor, and a drive mechanism for actuating the drive force distribution mechanism so that the drive force distribution ratio between the drive forces to be applied to the drive road wheels will be equalized to the target distribution ratio determined by the control unit.
35 Citations
10 Claims
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1. A drive force distribution control system for a motor vehicle having a pair of laterally spaced drive road wheels, comprising:
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a drive force distribution mechanism for varying a distribution ratio between drive forces to be applied to each of the laterally spaced drive wheels of said pair of drive road wheels; steering force detecting means for detecting the magnitude and direction of a steering force manually applied to steer the motor vehicle; lateral acceleration detecting means for detecting a lateral acceleration applied to the motor vehicle; distribution ratio determining means for determining a target distribution ratio between drive forces to be applied to each of the laterally spaced drive wheels of said pair of drive road wheels based on the steering force detected by said steering force detecting means and the lateral acceleration detected by said lateral acceleration detecting means; and drive means for actuating said drive force distribution mechanism so that the drive force distribution ratio between the drive force to be applied to each of the drive wheels of said pair of laterally spaced drive road wheels will be equalized to said target distribution ratio determined by said distribution ratio determining means. - View Dependent Claims (2, 3, 4)
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5. A drive force distribution control system for a motor vehicle having a pair of laterally spaced drive road wheels, comprising:
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a drive force distribution mechanism for varying a distribution ratio between drive forces to be applied to each of the laterally spaced drive wheels of said pair of drive road wheels; steering force detecting means for detecting the magnitude and direction of a steering force manually applied to steer the motor vehicle; lateral acceleration detecting means for detecting a lateral acceleration applied to the motor vehicle; distribution ratio determining means comprising means for determining a reference distribution ratio based on the steering force and correcting the reference distribution ratio into a target distribution ratio based on the lateral acceleration for determining the target distribution ratio between drive forces to be applied to each of the laterally spaced drive wheels of said pair of drive road wheels based on the steering force detected by said steering force detecting means and the lateral acceleration detected by said lateral acceleration detecting means; and drive means for actuating said drive force distribution mechanism so that the drive force distribution ratio between the drive force to be applied to each of the drive wheels of said pair of laterally spaced drive road wheels will be equalized to said target distribution ratio determined by said distribution ratio determining means. - View Dependent Claims (6, 7, 8, 9, 10)
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Specification