Vacuum actuated direction and speed control mechanism
First Claim
1. An off the road vehicle comprising:
- a frame;
an engine operatively supported by said frame;
at least a first ground engaging drive wheel operatively supported by said frame;
a drive system for use in selectively driving said at least first ground engaging drive wheel, said drive system being operatively connected to said engine, said drive system including a transmission having a forward condition, a reverse condition and a neutral condition for driving said ground engaging wheel, said transmission having an actuator rod attached thereto for use in shifting the transmission between the forward, reverse and neutral conditions;
a transmission control system comprising;
(1) an operator actuated activating means;
(2) a shift control mechanism that selectively receives an input from said activating means and selectively sends a corresponding output;
(3) a vacuum actuator operatively connected to said shift control mechanism and operatively connected to said actuating rod;
said vacuum actuator receiving said output from said shift control mechanism and adjusting said actuating rod to shift the transmission between said forward and reverse directions; and
(4) a sensing mechanism, said sensing mechanism comprising a sensor detector and a sensor, the sensor detector being connected to said actuator rod so as to move with the actuator rod when shifting the transmission between the forward, reverse and neutral conditions, wherein the sensor detects when the sensor detector is in a neutral condition and when the sensor detector is not in the neutral condition.
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Accused Products
Abstract
An electronic control system for shifting the direction in an off road vehicle such as a lawn and garden tractor or a utility vehicle is disclosed. The control system consists of a control mechanism that activates a control circuit that in turn activates an actuator to shift the transmission. The control mechanism receives inputs from the operator and sends the appropriate output to the control circuit which thereby actuates the actuator. The control system further includes a sensor that senses neutral or not neutral. The sensor additionally supplies a neutral or not neutral input to the control mechanism. The combination of the input from the operator and the sensor indicates the direction of the vehicle.
72 Citations
7 Claims
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1. An off the road vehicle comprising:
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a frame; an engine operatively supported by said frame; at least a first ground engaging drive wheel operatively supported by said frame; a drive system for use in selectively driving said at least first ground engaging drive wheel, said drive system being operatively connected to said engine, said drive system including a transmission having a forward condition, a reverse condition and a neutral condition for driving said ground engaging wheel, said transmission having an actuator rod attached thereto for use in shifting the transmission between the forward, reverse and neutral conditions; a transmission control system comprising; (1) an operator actuated activating means; (2) a shift control mechanism that selectively receives an input from said activating means and selectively sends a corresponding output; (3) a vacuum actuator operatively connected to said shift control mechanism and operatively connected to said actuating rod; said vacuum actuator receiving said output from said shift control mechanism and adjusting said actuating rod to shift the transmission between said forward and reverse directions; and (4) a sensing mechanism, said sensing mechanism comprising a sensor detector and a sensor, the sensor detector being connected to said actuator rod so as to move with the actuator rod when shifting the transmission between the forward, reverse and neutral conditions, wherein the sensor detects when the sensor detector is in a neutral condition and when the sensor detector is not in the neutral condition. - View Dependent Claims (2)
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3. A direction control system for an off-road vehicle having a drive system that selectively drives at least one ground engaging drive wheel, the drive system including a transmission having a forward condition, a reverse condition and a neutral condition for driving said ground engaging wheel, the control system comprising:
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a plurality of push buttons, said push buttons comprising at least a forward, a reverse and a neutral push button; a vacuum actuator; an actuator rod operatively connected to the transmission and to the vacuum actuator, where the actuator rod is movable in first and second directions by said vacuum actuator into a forward position, a reverse position, and a neutral position thereby commanding the transmission into said transmission into forward condition, the reverse condition, and the reverse condition, respectively; a shift control mechanism that receives inputs from said plurality of push button and uses said inputs to control the vacuum actuator to selectively move the actuator rod to shift the transmission between the forward, reverse and neutral conditions based on the condition of said plurality of push buttons; and a sensing mechanism, said sensing mechanism comprising a sensor detector and a sensor, the sensor detector being connected to said actuator rod so as to move with the actuator rod when shifting the transmission between the forward, reverse and neutral conditions, wherein the sensor detects when the actuator rod is in a neutral position and when the actuator rod is not in the neutral position. - View Dependent Claims (4, 5, 6, 7)
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Specification