Electronic throttle control apparatus
First Claim
1. An electronic throttle control apparatus including:
- a motor;
a throttle valve which is driven by the motor to open and close;
a throttle sensor for detecting an actual opening angle of the throttle valve;
wherein the electronic throttle control apparatus is arranged to control an opening angle of the throttle valve by driving the motor so that the actual opening angle detected by the throttle sensor becomes a target opening angle,the electronic throttle control apparatus further includes a fully closing stopper, and an abutting determination unit for determining whether the throttle valve abuts against the fully closing stopper, andthe abutting determination unit is arranged to determine whether the throttle valve abuts against the fully closing stopper based on a determination condition preset with respect to each one of a plurality of duty ratio ranges.
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Accused Products
Abstract
An electronic throttle control apparatus includes: a motor; a throttle valve which is driven by the motor to open and close; a throttle sensor for detecting an actual opening angle of the throttle valve. This electronic throttle control apparatus is arranged to control an opening angle of the throttle valve by driving the motor so that the actual opening angle detected by the throttle sensor becomes a target opening angle, the apparatus further includes a fully closing stopper, and an abutting determination unit for determining whether the throttle valve abuts against the fully closing stopper. The abutting determination unit is arranged to determine whether the throttle valve abuts against the fully closing stopper based on a determination condition preset with respect to each one of a plurality of duty ratio ranges.
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Citations
10 Claims
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1. An electronic throttle control apparatus including:
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a motor; a throttle valve which is driven by the motor to open and close; a throttle sensor for detecting an actual opening angle of the throttle valve; wherein the electronic throttle control apparatus is arranged to control an opening angle of the throttle valve by driving the motor so that the actual opening angle detected by the throttle sensor becomes a target opening angle, the electronic throttle control apparatus further includes a fully closing stopper, and an abutting determination unit for determining whether the throttle valve abuts against the fully closing stopper, and the abutting determination unit is arranged to determine whether the throttle valve abuts against the fully closing stopper based on a determination condition preset with respect to each one of a plurality of duty ratio ranges. - View Dependent Claims (2, 3, 4, 5, 6)
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7. An electronic throttle control apparatus including:
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a motor; a throttle valve which is driven by the motor to open and close; a throttle sensor for detecting an actual opening angle of the throttle valve; wherein the electronic throttle control apparatus is arranged to drive the motor to control so that an opening angle of the throttle valve detected by the throttle sensor based on a learned control reference opening angle becomes a target opening angle, the apparatus further includes; a fully closing stopper, an abutting determination unit for determining whether the throttle valve abuts against the fully closing stopper, and a lower limit updating unit for updating a control opening lower limit of the throttle valve based on a determination result of the abutting determination unit, and the lower limit updating unit updates the control opening lower limit to the target opening angle when the abutting determination unit determines that the throttle valve does not abut against the fully closing stopper, while the lower limit updating unit updates the control opening lower limit to an opening angle detected by the throttle sensor when the abutting determination unit determines that the throttle valve abuts against the fully closing stopper. - View Dependent Claims (8, 9, 10)
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Specification