System for controlling an automatic transmission throttle valve and method of use
OwnerStephen G. Holmesinventor
Life of this patent
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Abstract
A system for controlling a transmission throttle valve allows the transmission response to be quickly adjusted. The system includes an adapter assembly which is mounted on the rotatable throttle member of a fuel management device. A cam assembly is selectively positionable on the adapter assembly so as to adjust the rate of throttle valve cable pull. The cam assembly has guide pins which move within guide slots on the adapter assembly. The cam assembly also has an adjustment slot which receives an adjustment screw connected to the adapter assembly. The cam assembly is positioned on the adapter assembly so that the adjustment screw occupies a desired location along the adjustment slot, and then the adjustment screw is tightened to lock the cam assembly in place.
Claims15
A system for controlling a transmission throttle valve in a vehicle having a fuel management device which includes a rotatable throttle member having an idle state and a wide open throttle state, the transmission throttle valve connected to a transmission throttle valve cable, said system comprising:
- a cam assembly attachable to the rotatable throttle member;
- the transmission throttle valve cable connectable to said cam assembly, wherein when the rotatable throttle member is rotated from the idle state to the wide open throttle state, said cam assembly pulls the transmission throttle valve cable a correct cable pull distance;
- said cam assembly selectively positionable on the rotatable throttle member, wherein the position of said cam assembly determines a rate at which the transmission throttle valve cable is pulled said correct cable pull distance;
- and,
- wherein as the transmission throttle valve cable is pulled said correct cable pull distance said rate being one of (1) increasing as the rotatable throttle member is rotated from the idle state to the wide open throttle state, and (2) decreasing as the rotatable throttle member is rotated from the idle state to the wide open throttle state.
A system for controlling a transmission throttle valve in a vehicle having a fuel management device which includes a rotatable throttle member having an idle state and a wide open throttle state, the transmission throttle valve connected to a transmission throttle valve cable, said system comprising:
- an adapter assembly attachable to the rotatable throttle member;
- said adapter assembly including at least one guide slot;
- a cam assembly having at least one guide pin, a throttle valve cable guide, and a holder for holding the throttle valve cable;
- a retaining mechanism for selectively locking said adapter assembly and said cam assembly in fixed relationship;
- wherein said cam assembly may be placed in contact with said adapter assembly so that said at least one guide pin is received by said at least one guide slot;
- and,
- wherein said cam assembly may be moved so that said at least one guide pin assumes a desired position along said at least one guide slot, and said cam assembly locked in said desired position with said retaining mechanism;
- and,
- the transmission throttle valve cable connectable to said cam assembly, wherein when the rotatable throttle member is rotated from the idle state to the wide open throttle state, said cam assembly pulls the transmission throttle valve cable a correct cable pull distance for any selected position of said cam assembly with respect to said adapter assembly, and,
- wherein said locked desired position of said cam assembly determines a rate at which said transmission throttle valve cable is pulled said correct cable pull distance as the rotatable throttle member is rotated from the idle state to the wide open throttle state.
A method for controlling a transmission throttle valve, comprising:
- (a) providing a fuel management device which includes a rotatable throttle member having an idle state and a wide open throttle state,
- (b) providing a transmission throttle valve connected to a transmission throttle valve cable;
- (c) providing a system for controlling said transmission throttle valve, including:
- a cam assembly attachable to said rotatable throttle member,
- said transmission throttle valve cable connectable to said cam assembly, wherein when said rotatable throttle member is rotated from said idle state to said wide open throttle state, said cam assembly pulls said transmission throttle valve cable a correct cable pull distance;
- said cam assembly selectively positionable with respect to said rotatable throttle member, wherein the position of said cam assembly determines a rate at which said throttle valve cable is pulled, said rate being one of (I) increasing as said rotatable throttle member is rotated from said idle state to said wide open throttle state, and (2) decreasing as said rotatable throttle member is rotated from said idle state to said wide open throttle state, and,
- a retaining mechanism for locking said cam assembly in a fixed position with respect to said rotatable throttle member;
- (d) position said cam assembly to a desired position with respect to said rotatable throttle member;
- (e) using said retaining mechanism to lock said cam assembly in said desired position;
- (f) attaching said transmission valve throttle cable to said cam assembly;
- and,
- (g) causing said rotatable throttle member to rotate from said idle state to said wide open throttle state thereby pulling said transmission throttle valve cable said correct cable pull distance:
- and,
- (h) observing that said rate at which said transmission throttle valve cable is pulled said correct cable pull distance results in a desired transmission shift timing, firmness, and feel.
Dependencies are inferred from the claim text.