Output control apparatus for vehicle
First Claim
1. An output control apparatus for a vehicle comprising:
- torque reduction means for reducing driving torque independent of manipulation by the driver;
operating speed detecting means for detecting an operating speed of the vehicle;
reference torque setting means for calculating an actual longitudinal direction acceleration of a vehicle body from said detected operating speed of the vehicle to set a reference driving torque for the engine;
target driving torque setting means for correcting said reference driving torque according to a slip amount of at least one of the driving wheels of the vehicle to set a target driving torque for the engine;
a torque control unit for equating the actual driving torque to said target driving torque set by said target driving torque setting means by controlling operation of said torque reduction means; and
filter means for correcting, for each of a plurality of control cycles, the calculated actual longitudinal direction acceleration and for outputting, for each of said plurality of control cycles, a corrected longitudinal direction acceleration, varying with a predetermined delay time according to changes in said calculated actual longitudinal direction acceleration, and for maintaining the output corrected longitudinal direction acceleration, upon a power transmission apparatus of the vehicle being shifted, at a value above the output corrected longitudinal direction acceleration immediately preceeding that of the shift, wherein said reference torque setting means sets said reference driving torque according to said output corrected longitudinal direction acceleration.
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Accused Products
Abstract
An output control apparatus for a vehicle which includes a torque reduction device for reducing driving torque of an engine independent of manipulation by the driver and a filter device for outputting a corrected longitudinal direction acceleration, varying according to changes in longitudinal direction acceleration of the vehicle body with a predetermined delay time and maintaining the output during a speed shift above the value immediately before the speed shift. 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 also included for correcting the reference driving torque according to the slip amount of the driving wheels to set a target driving torque. Finally, a torque control unit is 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, thereby preventing a stalling feeling of the vehicle immediately after the speed shift, and improving the acceleration feeling.
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Citations
34 Claims
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1. An output control apparatus for a vehicle comprising:
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torque reduction means for reducing driving torque independent of manipulation by the driver; operating speed detecting means for detecting an operating speed of the vehicle; reference torque setting means for calculating an actual longitudinal direction acceleration of a vehicle body from said detected operating speed of the vehicle to set a reference driving torque for the engine; target driving torque setting means for correcting said reference driving torque according to a slip amount of at least one of the driving wheels of the vehicle to set a target driving torque for the engine; a torque control unit for equating the actual driving torque to said target driving torque set by said target driving torque setting means by controlling operation of said torque reduction means; and filter means for correcting, for each of a plurality of control cycles, the calculated actual longitudinal direction acceleration and for outputting, for each of said plurality of control cycles, a corrected longitudinal direction acceleration, varying with a predetermined delay time according to changes in said calculated actual longitudinal direction acceleration, and for maintaining the output corrected longitudinal direction acceleration, upon a power transmission apparatus of the vehicle being shifted, at a value above the output corrected longitudinal direction acceleration immediately preceeding that of the shift, wherein said reference torque setting means sets said reference driving torque according to said output corrected longitudinal direction acceleration. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27)
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28. An output control method for a vehicle comprising the steps of:
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(a) detecting an operating speed of the vehicle; (b) calculating an actual longitudinal direction acceleration of a vehicle body from the detected operating speed of the vehicle to set a reference driving torque for the engine; (c) correcting said reference driving torque according to a slip amount of at least one of the driving wheels of the vehicle to set a target driving torque for the engine; (d) equating the actual driving torque to the target driving torque set in said step (c) by controlling driving torque independent of manipulation by the driver; and (e) correcting, for each of a plurality of control cycles, the calculated actual longitudinal direction acceleration and outputting, for each of the plurality of control cycles, a corrected longitudinal direction acceleration, varying with a predetermined delay time according to changes in the calculated actual longitudinal direction acceleration, and maintaining and outputting the corrected longitudinal direction acceleration upon a power transmission apparatus of the vehicle being shifted, at a value above the output corrected longitudinal direction acceleration immediately preceeding that of the shift, wherein said step (b) of calculating sets the reference driving torque according to the output corrected longitudinal direction acceleration. - View Dependent Claims (29, 30, 31, 32, 33, 34)
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Specification