Vehicle door operating apparatus
First Claim
1. A vehicle door operating apparatus comprising a torque sensor for detecting torque applied to a knob of a vehicle door to generate a torque signal, an electric motor for imparting a power assist to an opening/closing movement of the vehicle door, and a controller unit for controlling the electric motor on the basis of at least the torque signal generated by the torque sensor,said vehicle door operating apparatus further comprising a velocity sensor for detecting a moving velocity of the vehicle door to generate a velocity signal,said controller unit including:
- a target current signal setting section for generating a target current signal corresponding to the torque signal;
an acceleration calculating section for performing an arithmetic operation to differentiate the velocity signal generated by said velocity sensor so as to generate an acceleration signal;
an acceleration coefficient generating section for generating an acceleration coefficient corresponding to the acceleration signal generated by said acceleration calculating section;
a velocity coefficient generating section for generating a velocity coefficient corresponding to the velocity signal;
a modifying section for modifying the target current signal on the basis of the acceleration coefficient and velocity coefficient so as to generate a modified current signal; and
a drive control section for generating a control signal on the basis of the modified current signal generated by said modifying section.
1 Assignment
0 Petitions
Accused Products
Abstract
A vehicle door operating apparatus includes a torque sensor or detecting torque applied to a knob of a vehicle door, a velocity sensor for detecting a moving velocity of the vehicle door, and a controller unit. The controller unit modifies a target current signal, corresponding to the detected torque, on the basis of an acceleration coefficient corresponding to an acceleration signal calculated from the moving velocity and a velocity coefficient corresponding to the moving velocity, to thereby generate a modified current signal. The apparatus provides a power assist to a opening/closing movement of the vehicle door, using the modified current signal. That is, the vehicle door operating apparatus generates a modified current signal on the basis of the target current signal corresponding to the detected torque, acceleration coefficient corresponding to the acceleration signal and velocity coefficient corresponding to the velocity signal, and drives a power-assist imparting electric motor on the basis of the modified current signal.
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Citations
11 Claims
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1. A vehicle door operating apparatus comprising a torque sensor for detecting torque applied to a knob of a vehicle door to generate a torque signal, an electric motor for imparting a power assist to an opening/closing movement of the vehicle door, and a controller unit for controlling the electric motor on the basis of at least the torque signal generated by the torque sensor,
said vehicle door operating apparatus further comprising a velocity sensor for detecting a moving velocity of the vehicle door to generate a velocity signal, said controller unit including: -
a target current signal setting section for generating a target current signal corresponding to the torque signal; an acceleration calculating section for performing an arithmetic operation to differentiate the velocity signal generated by said velocity sensor so as to generate an acceleration signal; an acceleration coefficient generating section for generating an acceleration coefficient corresponding to the acceleration signal generated by said acceleration calculating section; a velocity coefficient generating section for generating a velocity coefficient corresponding to the velocity signal; a modifying section for modifying the target current signal on the basis of the acceleration coefficient and velocity coefficient so as to generate a modified current signal; and a drive control section for generating a control signal on the basis of the modified current signal generated by said modifying section. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A vehicle door operating apparatus comprising a torque sensor for detecting torque applied to a knob of a vehicle door to generate a torque signal, an electric motor for imparting a power assist to an opening/closing movement of the vehicle door, and a controller unit for controlling the electric motor on the basis of at least the torque signal generated by the torque sensor,
said vehicle door operating apparatus further comprising a velocity sensor for detecting a moving velocity of the vehicle door to generate a velocity signal, said controller unit including: -
a target current signal setting section for generating a target current signal corresponding to the torque signal; a driving/braking velocity coefficient generating section for outputting a positive velocity coefficient when the velocity signal is not greater than a predetermined value but outputting a negative velocity coefficient when the velocity signal is greater than the predetermined value; a modifying section for modifying the target current signal on the basis of the velocity coefficient so as to generate a modified current signal; and a drive control section for generating a control signal on the basis of the modified current signal generated by said modifying section. - View Dependent Claims (8)
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9. A vehicle door operating apparatus comprising a torque sensor for detecting torque applied to a knob of a vehicle door to generate a torque signal, an electric motor for imparting a power assist to an opening/closing movement of the vehicle door, and a controller unit for controlling the electric motor on the basis of at least the torque signal generated by the torque sensor,
said vehicle door operating apparatus further comprising a velocity sensor for detecting a moving velocity of the vehicle door to generate a velocity signal, and a position sensor for detecting a position of the vehicle door, said controller unit including: -
a target current signal setting section for generating a target current signal corresponding to the torque signal; a velocity coefficient generating section for generating a velocity coefficient corresponding to the velocity signal; a modifying section for modifying the target current signal on the basis of the velocity coefficient so as to generate a modified current signal; a drive control section for generating a control signal on the basis of the modified current signal generated by said modifying section; and an inertia velocity control section for controlling a moving velocity of the vehicle door when a human stops depressing the knob of the vehicle door during an opening/closing movement of the vehicle door. - View Dependent Claims (10, 11)
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Specification