Automobile and control method of automobile
First Claim
1. An automobile driven with a driving force from a driving source, said automobile comprising:
- a deceleration force estimation module that estimates a deceleration force in a vehicle longitudinal direction, which is caused by steering of the vehicle and is applied to reduce speed of the vehicle;
a control value calculation module that adjusts phases of a longitudinal acceleration in the vehicle longitudinal direction and a lateral acceleration in a vehicle lateral direction out of a steering-based acceleration, which is caused by steering of the vehicle and is applied to the vehicle, based on the estimated deceleration force, so as to calculate an adjustment control value that is used to adjust the steering-based acceleration; and
a driving control module that drives and controls the driving source to ensure output of a driving force to an axle based on a drive change demand of the vehicle and the calculated adjustment control value.
1 Assignment
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Accused Products
Abstract
In an automobile of the invention, a cornering drag estimator 61 estimates a cornering drag from measurements of steering angle θ and vehicle speed V. A gain multiplier 62 multiplies the estimated cornering drag by a preset gain K to reduce the estimated cornering drag. A phase adjuster 63 adjusts the phase of the rest of the estimated and reduced cornering drag. An implementation system 70 receives the sum of the output of the gain multiplier 62 and the output of the phase adjuster 63 and regulates the throttle opening of an engine according to the received sum. This adjusts the phase and the degree of reduction of the estimated cornering drag. This arrangement of the invention attains the adequate levels of pitching and rolling, which may be caused in the vehicle in the turning state.
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Citations
14 Claims
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1. An automobile driven with a driving force from a driving source, said automobile comprising:
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a deceleration force estimation module that estimates a deceleration force in a vehicle longitudinal direction, which is caused by steering of the vehicle and is applied to reduce speed of the vehicle; a control value calculation module that adjusts phases of a longitudinal acceleration in the vehicle longitudinal direction and a lateral acceleration in a vehicle lateral direction out of a steering-based acceleration, which is caused by steering of the vehicle and is applied to the vehicle, based on the estimated deceleration force, so as to calculate an adjustment control value that is used to adjust the steering-based acceleration; and a driving control module that drives and controls the driving source to ensure output of a driving force to an axle based on a drive change demand of the vehicle and the calculated adjustment control value. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. An automobile control method of controlling an automobile, which is driven with a driving force from a driving source, said automobile control method comprising the steps of:
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(a) estimating a deceleration force in a vehicle longitudinal direction, which is caused by steering of the vehicle and is applied to reduce speed of the vehicle; (b) regulating magnitude and phase of a longitudinal acceleration in the vehicle longitudinal direction out of a steering-based acceleration, which is caused by steering of the vehicle and is applied to the vehicle, based on the estimated deceleration force, so as to calculate an adjustment control value that is used to adjust the steering-based acceleration; and (c) driving and controlling the driving source to ensure output of a driving force to an axle based on a drive change demand of the vehicle and the calculated adjustment control value. - View Dependent Claims (13, 14)
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Specification