Electric brake device
AssigneeMitsubishi Jidosha Kogyo Kabushiki Kaisha
InventorsHaruo Kotera, Hiromitsu Toyota
Life of this patent
Estimating the term…
Abstract
An electric brake device has at least three control units: a first diagonal wheel control unit that controls a front-left wheel brake mechanism and a rear-right wheel brake mechanism which are positioned diagonally; a second diagonal wheel control unit that controls a front-right wheel brake mechanism and a rear-left wheel brake mechanism which are positioned diagonally; and a front wheel control unit that controls a front-left wheel brake mechanism and a front-right wheel brake mechanism. Each of the brake mechanisms has a friction-receiving member that rotates together with the wheel; and a friction-applying member that moves while being powered by an electric actuator, and obtains the braking force by pressing the friction-applying member against the friction-receiving member.
Claims14
An electric brake device for a vehicle that has a first wheel pair composed of a first wheel and a second wheel arranged leaving a space in between in a width direction of the vehicle, and a second wheel pair composed of a third wheel and a fourth wheel arranged leaving a space in between in the width direction, and arranged leaving a space from the first wheel pair in a length direction of the vehicle,
- the device comprising:
- a first control unit that controls only a first brake mechanism for braking the first wheel, and a third brake mechanism for braking the third wheel positioned diagonal to the first wheel;
- a second control unit that controls only a second brake mechanism for braking the second wheel, and a fourth brake mechanism for braking the fourth wheel positioned diagonal to the second wheel;
- and
- a third control unit that controls the first brake mechanism and the second brake mechanism,
- wherein, when one of the first control unit and the second control unit is a failing control unit, the third control unit increases the braking force of one of the first brake mechanism and the second brake mechanism controlled by the failing control unit, while a non-failing control unit among the one of the first control unit and the second control unit increases the braking force of another one of the first brake mechanism and the second brake mechanism.
Dependencies are inferred from the claim text.