Electric brake device and electric brake control device
AssigneeHitachi Astemo, Ltd.
InventorsDaisuke KOJIMA, Norikazu MATSUZAKI, Masayuki KIKAWA
Life of this patent
Estimating the term…
Abstract
Provided is a parking brake control device configured to, when releasing a hold on a braking force, energize an electric motor, and change a drive time of the electric motor in accordance with a current change amount in a predetermined interval after a predetermined time has elapsed since a current value of the electric motor starts to decrease after increasing and a current value at which the current change amount of the electric motor converges to a predetermined value or less.
Claims9
An electric brake device, comprising:
- a motor configured to drive an electric mechanism configured to hold a braking force by pressing a braking member against a braked member;
- and
- a control device configured to control a drive of the motor,
- wherein the control device is configured to, when releasing the hold on the braking force, energize the motor, and change a drive time of the motor in accordance with a current change amount in a predetermined interval after a predetermined time has elapsed since a current value of the motor starts to decrease after increasing and a current value at which the current change amount of the motor converges to a predetermined value or less.
An electric brake device, comprising:
- a motor configured to drive an electric mechanism configured to hold a braking force by pressing a braking member against a braked member;
- and
- a control device configured to control a drive of the motor,
- wherein the control device is configured to, when releasing the hold on the braking force, energize the motor, and change a drive time of the motor based on a current value acquired each predetermined cycle after the current value of the motor increases and then decreases to enter a predetermined current value range and a current value at which the current value becomes substantially constant.
An electric brake control device for controlling a motor configured to drive an electric mechanism configured to hold a braking force by pressing a braking member against a braked member,
- the electric brake control device being configured to, when releasing the hold on the braking force, energize the motor, and change a drive time of the motor in accordance with a current change amount in a predetermined interval after a predetermined time has elapsed since a current value of the motor starts to decrease after increasing and a current value at which the current change amount of the motor converges to a predetermined value or less.
Dependencies are inferred from the claim text.