Output control apparatus for vehicle
First Claim
1. An output control apparatus for a vehicle comprising:
- torque adjusting means for adjusting driving torque independent of manipulation by a driver of the vehicle;
driven wheel speed detection means for detecting rotational speed of driven wheels of the vehicle;
reference torque setting means for setting a reference driving torque according to said driven wheel speed detected by said driven wheel speed detection means;
driving wheel speed detection means for detecting rotational speed of driving wheels of the vehicle;
slip detection means for detecting a slip amount of the driving wheels according to said driving wheel speed detected by said driving wheel speed detection means and said driven wheel speed detected by said driven wheel speed detection means;
steering angle detection means for detecting a steering angle of the vehicle;
steering angle-dependent lateral acceleration calculation means for calculating a steering angle-dependent lateral acceleration estimated to generate in the vehicle according to said steering angle detected by said steering angle detection means;
turning correction means for correcting said slip amount so that said slip amount detected by said slip detection means increases in association with an increase in said steering angle-dependent lateral acceleration calculated by said steering angle-dependent lateral acceleration calculation means;
correction torque setting means for setting a correction torque according to said slip amount corrected by said turning correction means;
driving torque correction means for correcting said reference driving torque set by said reference driving torque setting means by said correction torque to calculate a target driving torque; and
torque control means for controlling said torque adjusting means so that an actual driving torque is equal to said target driving torque calculated by said driving torque correction means.
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Accused Products
Abstract
An output control apparatus for a vehicle includes a torque reduction device for reducing driving torque of an engine independent of manipulation by the driver and a vehicle speed detection device for detecting a vehicle speed. It further includes a reference driving torque setting device for setting a reference driving torque according to the vehicle speed detected by the vehicle speed detection device. A reference torque setting device is further included for setting a reference driving torque according to a slip amount of the driving wheels. A target driving torque setting device is further included for setting a target driving torque from the reference driving torque set by the reference torque setting device according to a peripheral speed of the driving wheels. A torque control unit is also included for controlling operation of the torque reduction device so that the driving torque is that of the target driving torque set by the target driving torque setting device. Finally, a turning correction device is included for correcting the target driving torque according to the steering angle, to adequately control the driving force of the vehicle during turning, separately from that of straightforward traveling, thereby enabling safe and smooth traveling of the vehicle.
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Citations
18 Claims
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1. An output control apparatus for a vehicle comprising:
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torque adjusting means for adjusting driving torque independent of manipulation by a driver of the vehicle; driven wheel speed detection means for detecting rotational speed of driven wheels of the vehicle; reference torque setting means for setting a reference driving torque according to said driven wheel speed detected by said driven wheel speed detection means; driving wheel speed detection means for detecting rotational speed of driving wheels of the vehicle; slip detection means for detecting a slip amount of the driving wheels according to said driving wheel speed detected by said driving wheel speed detection means and said driven wheel speed detected by said driven wheel speed detection means; steering angle detection means for detecting a steering angle of the vehicle; steering angle-dependent lateral acceleration calculation means for calculating a steering angle-dependent lateral acceleration estimated to generate in the vehicle according to said steering angle detected by said steering angle detection means; turning correction means for correcting said slip amount so that said slip amount detected by said slip detection means increases in association with an increase in said steering angle-dependent lateral acceleration calculated by said steering angle-dependent lateral acceleration calculation means; correction torque setting means for setting a correction torque according to said slip amount corrected by said turning correction means; driving torque correction means for correcting said reference driving torque set by said reference driving torque setting means by said correction torque to calculate a target driving torque; and torque control means for controlling said torque adjusting means so that an actual driving torque is equal to said target driving torque calculated by said driving torque correction means. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An output control method for a vehicle comprising the steps of:
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(a) adjusting driving torque independent of manipulation by a driver of the vehicle; (b) detecting rotational speed of driven wheels of the vehicle; (c) setting a reference driving torque according to said driven wheel speed detected in said step (b); (d) detecting rotational speed of driving wheels of the vehicle; (e) detecting a slip amount of the driving wheels according to said driving wheel speed detected in said step (d) and said driven wheel speed detected in said step (b); (f) detecting a steering angle of the vehicle; (g) calculating a steering angle-dependent lateral acceleration estimated to generate in the vehicle according to said steering angle detected in said step (f); (h) correcting the slip amount so that said slip amount detected in said step (e) increases in association with an increase in said steering angle-dependent lateral acceleration calculated in said step (g); (i) setting a correction torque according to said slip amount corrected in said step (h); (j) correcting said reference driving torque set in said step (c) by said correction torque of step (i) to calculate a target driving torque; and (k) controlling and adjusting of step (a) so that an actual driving torque is equal to said target driving torque calculated in said step (j). - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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Specification