High torque braking system
AssigneeVolvo Construction Equipment AB
InventorsHarisha Shimoga, Natesh Krishnan
Life of this patent
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Abstract
A method of automatically activating a high-torque braking system in a heavy-duty vehicle configured to operate in at least one low speed, high torque mode and at least one higher speed, lower torque mode is disclosed. The method includes determining a speed-controller device such as a joystick or lever of the vehicle is in a first position which results in the vehicle travelling in a higher-speed, lower-torque mode, and, responsive to detecting braking and a change in position of the speed-controller from the first position to a second, neutral, position, activating a low-speed high torque mode of operation for braking the vehicle.
Claims20
A method of automatically activating a high-torque braking system in a vehicle configured to operate in at least one low speed, high torque propulsion mode and at least one higher speed, lower torque propulsion mode, the method comprising:
- determining a speed-controller lever of the vehicle is in a first position which results in the vehicle travelling in a higher-speed, lower-torque propulsion mode;
- and,
- responsive to detecting braking and a change in position of the speed-controller lever from the first position to a second, neutral, position, activating a low-speed high torque propulsion mode to enhance braking of the vehicle.
A control system configured to automatically activate a high-torque braking system in a heavy-duty vehicle configured to operate in at least one low speed, high torque mode and at least one higher speed, lower torque mode, wherein the control system comprises:
- memory;
- one or more processors;
- and
- a speed-controller lever position detector configured to detect a position of a speed-controller lever of the vehicle, any changes in position of the speed-controller lever, and if the vehicle is operating in a high-speed low torque mode of propulsion;
- a braking detector configured to detect braking of the vehicle;
- and
- a low-speed high-torque activator configured to activating a low-speed high torque mode of propulsion for assisting braking of the vehicle responsive to the controller determining the propulsion system of the vehicle is operating in a high-speed, low-torque mode and the speed-controller position detector detecting a change in position of the speed-controller lever from the first position to a neutral position.
A heavy-duty vehicle comprising a control system configured to automatically activate a high-torque braking system in a heavy-duty vehicle configured to operate in at least one low speed, high torque mode and at least one higher speed, lower torque mode, wherein the control system comprises:
- memory;
- one or more processors;
- and
- a speed-controller position detector configured to detect a position of a speed-controller of the vehicle, any changes in position of the speed-controller, and if the vehicle is operating in a high-speed low torque mode of propulsion;
- a braking detector configured to detect braking of the vehicle;
- and
- a low-speed high-torque activator configured to activating a low-speed high torque mode of propulsion for assisting braking of the vehicle responsive to the controller determining the propulsion system of the vehicle is operating in a high-speed, low-torque mode and the speed-controller position detector detecting a change in position of the speed-controller from the first position to a neutral position.
Dependencies are inferred from the claim text.