Electric motor-driven brake device
AssigneeMitsubishi Electric Corporation
InventorsAtsushi YUYAMA, Chiharu Morisaki
Life of this patent
Estimating the term…
Abstract
An electric motor-driven brake device for use in a wheeled vehicle is provided with low costs which appropriately enables the wheeled vehicle running and stopping as it usually does, even when a malfunction and/or abnormality are/is caused in the electric motor-driven brake device. Signal lines of stroke sensors each for detecting the quantity of stroke of a brake pedal are connected to controllers in an electric motor-drive unit for controlling a motor which drives an electric motor-driven piston of a brake pad(s) attached thereat.
Claims29
An electric motor-driven brake device, comprising:
- a disc rotor for rotating together with an axle of an automotive wheel of a wheeled vehicle;
- a brake pad for producing braking force of the wheeled vehicle by means of pressing said brake pad against said disc rotor;
- an electric motor-driven piston, being driven a motor, for pressing said brake pad against said disc rotor, or for disengaging said brake pad from said disc rotor;
- an electric motor-drive device for controlling drive of said electric motor-driven piston by controlling said motor;
- and
- a stroke sensor for detecting a quantity of stroke of a brake pedal,
- the electric motor-driven brake device for controlling braking force on said automotive wheel of the wheeled vehicle by means of the electric motor-drive device in accordance with a quantity of stroke being detected, wherein
- the electric motor-drive device comprises a first controller and a second controller for driving said motor, and
- a signal line of said stroke sensor is connected to both of the first controller and the second controller.
An electric motor-driven brake device, comprising:
- a disc rotor for rotating together with an axle of an automotive wheel of a wheeled vehicle;
- a brake pad for producing braking force of the wheeled vehicle by means of pressing said brake pad against said disc rotor;
- an electric motor-driven piston, being driven by a motor, for pressing said brake pad against said disc rotor, or for disengaging said brake pad from said disc rotor;
- an electric motor-drive device for controlling drive of said electric motor-driven piston by controlling said motor;
- and
- a first stroke sensor and a second stroke sensor each for detecting a quantity of stroke of a brake pedal,
- the electric motor-driven brake device for controlling braking force on said automotive wheel of the wheeled vehicle by means of the electric motor-drive device in accordance with a quantity of stroke being detected, wherein
- the electric motor drive device comprises a first controller and a second controller for driving said motor;
- and
- a signal line of the first stroke sensor is connected to the first controller, and a signal line of the second stroke sensor is connected to the second controller.
Dependencies are inferred from the claim text.