Abstract: An electronic device for modifying the calibration of the electronic control system of a modern electronic transmission. An analog processor monitors an electrical current indicating the internal line hydraulic fluid pressure of the transmission and the throttle output of an engine associated with the transmission to detect deficiencies in the internal line hydraulic fluid pressure of the transmission. Further, upon the detection of deficiencies in the internal line hydraulic fluid pressure, the analog processor alters the electronic feedback between the electronic control system and an electronic pressure valve responsible for regulating the internal line hydraulic fluid pressure to increase the internal line hydraulic fluid pressure.

Abstract: A variable force push button is used as an input device for a control system. Specifically, a bi-directional storage device produces a command that is applied to an element to be controlled. A signal is generated having a characteristic representative of the force applied to the push button. A representation of the characteristic is integrated by the storage device. In addition to changing the characteristic by varying the force applied to the push button, the user can change the direction of the integration, thereby increasing and decreasing the value of the command. The push button comprises a pressure sensitive element sandwiched between electrically conductive contacts one of which is actuated by the user. The pressure sensitive element is constructed of conductive particles in an elastomeric matrix. Preferably, electrically conductive micro-agglomerates of unbound finely divided electro-conductive carbon particles having a maximum dimension of between about 0.