Electronic brake management system with a signal modulation controller and a brushless motor

An electronic brake management system for controlling the application of brakes to wheels on a vehicle, comprising:

• a plurality of hydraulic valves for controlling the application of brakes to said wheels on said vehicle;
• a plurality of valve drivers for controlling said valves in accordance with respective first PWM control signals for said plurality of valves;
• a plurality of proportional valves;
• a plurality of proportional valve drivers for controlling said proportional valves in accordance with respective second PWM electrical control signals;
• a brushless motor for driving a hydraulic pump for supplying fluid to said brakes in accordance with a motor position PWM control signal;
• and
• a pulse width modulation circuit for receiving feedback signals from said plurality of proportional drivers indicative of a parameter of said respective ones of said plurality of proportional valves, and for receiving a feedback signal indicative of the position of said brushless motor, and generating said first PWM control signals, said second PWM control signals, and said motor speed PWM control signal.

A method for controlling brake fluid to brakes associated with wheels on a vehicle, comprising the steps of:

• controlling hydraulic valves that apply brake fluid to respective brakes in accordance with a modulated valve control signal;
• controlling the speed of a brushless motor that drives a hydraulic pump for supplying the fluid to said brakes in accordance with a motor position control signal;
• and
• generating said motor speed control signal in accordance with a feedback signal indicative of the position of said brushless motor.