US PATENT SUBCLASS 701 / 84
.~.~.~ Control of engine torque

Current as of: June, 1999
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701 /   HD   DATA PROCESSING: VEHICLES, NAVIGATION, AND RELATIVE LOCATION

1  DF  VEHICLE CONTROL, GUIDANCE, OPERATION, OR INDICATION {19}
70  DF  .~ Indication or control of braking, acceleration, or deceleration {3}
82  DF  .~.~ Antispin, traction control, or drive slip control {8}
84.~.~.~ Control of engine torque {2}
85  DF  .~.~.~.~> Having throttle valve positioning
86  DF  .~.~.~.~> Having fuel cutting or ignition timing retarding

DEFINITION

Classification: 701/84

Control of engine torque:

(under subclass 82) antispin, traction control, or drive slip control wherein the electrical data processing system or calculating computer is designed to control the braking, acceleration, or deceleration of a vehicle by regulation of the engine output power.

SEE OR SEARCH THIS CLASS, SUBCLASS:

110, for internal-combustion engine control or indication

wherein a digital or programmed data processing system is designed to include the regulation of the vehicle speed, acceleration or deceleration.

SEE OR SEARCH CLASS

123, Internal-Combustion Engines,

320+, for engine speed regulators responsive to vehicle acceleration or deceleration.

303, Fluid-Pressure Brake and Analogous Systems, 141, for speed and traction control by regulating the engine torque.

477, Interrelated Power Delivery Controls, Including Engine Control,

182+, for engine brake control responsive to engine speed.