On/off and modulated/duty-cycled solenoid tester
OwnerLarry Schafferinventor
Life of this patent
Estimating the term…
Abstract
An apparatus for performing on/off or modulated/duty-cycled testing on a solenoid in a computer controlled automatic transmission when the solenoid is removed from the vehicle or while the solenoid is in the vehicle. The apparatus comprises: three jacks, a switch when actuated for performing a diode test, circuitry for electrically connecting the apparatus to the solenoid and preventing over current and over voltage surges, circuitry for performing the on/off testing, circuitry for performing the modulated/duty-cycled test and pneumatic components for supplying air pressure to the solenoid.
Claims10
An apparatus having first and second test modes for testing a solenoid in a computer controlled transmission comprising:
- (a) first switch means of a first test mode circuit means for energizing the solenoid to perform said first test mode when the solenoid is of a first mode of operation;
- (b) second switch means for connecting the solenoid to ground to perform said first test mode or said second test mode wherein actuating said second switch means performs a diode test;
- and,
- (c) third switch means for energizing a second test mode circuit means for performing said second test mode when the solenoid is of a second mode of operation, wherein said first and the second test modes are on/off and modulated/duty-cycled, respectively.
The apparatus of claim 9, further comprising pneumatic means wherein the pneumatic means comprises:
- (a) port means for receiving air pressure;
- (b) nozzle means coupled to said port means for providing said air pressure to the solenoid;
- (c) control valve coupled to said nozzle means for controlling said air pressure from said nozzle means to the solenoid;
- and,
- (d) pressure gauge means for indicating air pressure flowing through the solenoid.
An apparatus having first and second test modes for bench testing a solenoid having first or second modes of operation in a computer controlled transmission when the solenoid is removed from a vehicle or while the solenoid is in the vehicle, the apparatus comprising:
- (a) first test mode circuit means for performing said first test mode;
- (b) second test mode circuit means for performing said second test mode;
- and, (c) switch means coupled to said first test mode circuit means and said second test mode circuit means for providing ground or negative potential to a negative side of the solenoid when performing said first test mode or said second test mode, wherein when actuated a diode test is performed, wherein said first and the second test modes are on/off and modulated/duty-cycled, respectively.
Dependencies are inferred from the claim text.