Deceleration control apparatus and method for automotive vehicle
First Claim
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1. A deceleration control apparatus for an automotive vehicle, comprising:
- a deceleration controlling section configured to set a target vehicle speed in accordance with a turning travel situation of the vehicle in order for a vehicle speed to become equal to the target vehicle speed, and configured to perform a deceleration control, wherein a deceleration required in the deceleration control is obtained through a control of a braking fluid pressure for wheel cylinders of respective road wheels;
a throttle opening angle controlling section configured to control an engine throttle opening angle; and
an accelerator manipulated variable detecting section configured to detect an accelerator manipulated variable by a vehicle driver,wherein the throttle opening angle controlling section is configured to control the throttle opening angle such that the throttle opening angle is decrementally reduced by a predetermined quantity in a closure direction when starting the deceleration control by the deceleration controlling section, the predetermined quantity being an amount which does not give an unpleasant feeling to a vehicular occupant;
wherein the throttle opening angle controlling section is configured to control the throttle opening angle such that the throttle opening angle is recovered to a throttle opening angle corresponding to the accelerator manipulated variable detected by the accelerator manipulated variable detecting section at a variation degree when the brake fluid pressure control by the deceleration controlling section is ended, wherein the variation degree corresponds to a variation quantity of the target vehicle speed, wherein the variation degree becomes larger as the variation quantity of the target vehicle speed becomes larger.
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Abstract
In deceleration control apparatus and method for an automotive vehicle, a deceleration control is performed in accordance with a turning travel situation of the vehicle; and an engine throttle opening angle is controlled gradually in a closure direction at a preset variation degree.
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Citations
24 Claims
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1. A deceleration control apparatus for an automotive vehicle, comprising:
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a deceleration controlling section configured to set a target vehicle speed in accordance with a turning travel situation of the vehicle in order for a vehicle speed to become equal to the target vehicle speed, and configured to perform a deceleration control, wherein a deceleration required in the deceleration control is obtained through a control of a braking fluid pressure for wheel cylinders of respective road wheels; a throttle opening angle controlling section configured to control an engine throttle opening angle; and an accelerator manipulated variable detecting section configured to detect an accelerator manipulated variable by a vehicle driver, wherein the throttle opening angle controlling section is configured to control the throttle opening angle such that the throttle opening angle is decrementally reduced by a predetermined quantity in a closure direction when starting the deceleration control by the deceleration controlling section, the predetermined quantity being an amount which does not give an unpleasant feeling to a vehicular occupant; wherein the throttle opening angle controlling section is configured to control the throttle opening angle such that the throttle opening angle is recovered to a throttle opening angle corresponding to the accelerator manipulated variable detected by the accelerator manipulated variable detecting section at a variation degree when the brake fluid pressure control by the deceleration controlling section is ended, wherein the variation degree corresponds to a variation quantity of the target vehicle speed, wherein the variation degree becomes larger as the variation quantity of the target vehicle speed becomes larger. - 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)
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Specification