Invention Grant
- Patent Title: Switch assembly with separate independent fault detection
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Application No.: US17445209Application Date: 2021-08-17
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Publication No.: US11821950B2Publication Date: 2023-11-21
- Inventor: James D. Shaw , Aaron Ransdell
- Applicant: Allison Transmission, Inc.
- Applicant Address: US IN Indianapolis
- Assignee: Allison Transmission, Inc.
- Current Assignee: Allison Transmission, Inc.
- Current Assignee Address: US IN Indianapolis
- Agency: Woodard Emhardt Henry Reeves & Wagner LLP
- Main IPC: G01R31/327
- IPC: G01R31/327

Abstract:
A switching assembly configured to use different sensing technologies to detect a button press and to thereby determine when the switch is malfunctioning. The switch assembly may include an actuator that is configured to selectively open or close an electric circuit, and may also include a sensor responsive to the position of the actuator. A logic circuit may be included that is configured to compare input from the sensor with input from the circuit the switch is electrically connected to so as to determine whether the switch assembly is operating properly. The logic circuit may generate a signal indicating the operational status of the switch and may optionally provide this signal to a fault detection circuit. The actuator, sensor, and logic circuit may also be mounted within a common housing thus providing a single installation package.
Public/Granted literature
- US20230055956A1 SWITCH ASSEMBLY WITH SEPARATE INDEPENDENT FAULT DETECTION Public/Granted day:2023-02-23
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