Motor brake control system

A brake control system for use on a motor having motor brake retarders, each of said motor brake retarders being capable of retarding a predetermined number of cylinders in said motor, said system comprising:

• means for selecting the number of said brake retarders to be activated,
• means operative upon said selection by said selection means for generating a signal,
• means operative upon receipt of said signal for activating said selected retarders, and
• means cooperative with said activating means for providing a designated time delay between the generation of said signal and the activation of said retarders.

A brake control system for use on a motor having motor brake retarders, each of said motor brake retarders being capable of retarding a predetermined number of cylinders in said motor, said system comprising:

• means for selecting the number of said brake retarders to be activated,
• means operative upon said selection by said selection means for generating a signal,
• means operative upon receipt of said signal for sequentially activating each of said selected retarders, and
• means cooperative with said activating means for providing a time delay after the activation of the first retarder and between the activation of each successive retarder.

A brake control system for use on a motor having motor brake retarders and a fuel delivery system, each of said motor brake retarders being capable of retarding a predetermined number of cylinders in said motor, said system comprising:

• means for selecting the number of said brake retarders to be activated,
• means operative upon said selection by said selection means for generating a signal,
• means operative upon receipt of said signal for sequentially activating each of said selected retarders,
• means cooperative with said activating means for providing a time delay between the generation of said signal and the activation of the first retarder and a time delay between the activation of each successive retarder, and
• means operative with the pressure of fuel in said fuel delivery system for being above a given value for preventing said activating means from activating said selected motor brake retarders.

A brake control system for use on a motor having motor brake retarders, each of said motor brake retarders being capable of retarding a predetermined number of cylinders in said motor, said system comprising:

• means for selecting the number of said brake retarders to be activated,
• means operative upon said selection by said selection means for activating said retarders,
• means cooperative with said motor for generating a signal representative of the RPM speed of said motor,
• means operative with a predetermined state of said signal for deactivating said activating means, said predetermined state of said signal occurring when the speed of said motor drops below a predetermined RPM speed, and
• means cooperative with said activating means for providing a time delay after the activation of the first retarder and a time delay between the activation of each successive retarder.

A brake control system for use on a motor having motor brake retarders, each of said motor brake retarders being capable of retarding a predetermined number of cylinders in said motor, said system comprising:

• means cooperative with said motor for determining the speed of said motor,
• means operative upon said determining means for enabling said retarders to become activated when a predetermined time delay occurs after the speed of said motor exceeds a predetermined high RPM speed,
• means operative with said determining means for deenabling said retarders from becoming activated when the speed of said motor drops below a predetermined low RPM speed,
• means for manually selecting which of said retarders are to be activated, and
• means cooperative upon said manual selecting means and cooperative with said enabling and deenabling means for automatically activating said selected motor brake retarders in a predetermined order, said activating means comprising:
• (a) means operative upon said selection by said selection means for generating a unique signal, said signal being the identity of said selected retarders to be activated, and
• (b) means receptive of said unique signal for sequentially activating said identified retarders, each of said identified retarders being activated only after the expiration of a time delay from the previously activated retarder.

A brake control system for use on a motor having motor brake retarders, a throttle fuel control, and a fuel delivery system, each of said motor brake retarders being capable of retarding a predetermined number of cylinders in said motor, said system comprising:

• means cooperative with said motor for determining the speed of said motor,
• means operative upon said determining means for enabling said retarders when the speed of said motor exceeds a predetermined high RPM speed,
• means operative with said determining means for deenabling said retarders when the speed of said motor drops below a predetermined low RPM speed,
• means for manually selecting which of said retarders are to be activated, and
• means cooperative upon said manual selecting means and responsive to said enabling and deenabling means for automatically activating said selected motor brake retarders.