| 摘要 |
A system and method is presented for diagnosing problems in a sensor, a vehicle computer and a vehicle sensor wiring harness. The diagnostic system comprises a sensor simulator configured to be selectively coupled to the vehicle computer via a wiring harness during a diagnostic mode, and to eliminate and simulate a known good sensor to the vehicle computer by way of the vehicle sensor wiring harness directly connected therebetween. The system includes an external computer adapted to selectively couple the sensor simulator to the vehicle computer, and a user keypad and memory to receive and store user commands of a selected manufacturer's make, model, year of vehicle, and the function type of the selected sensor, and to enable the user to select or adjust a typical operational value comprising one or more of a voltage, current or resistance operational range values of the selected sensor. |
| 主权项 |
1. An automotive diagnostic system for a vehicle, comprising:
a sensor simulator, adapted to be selectively coupled during a diagnostic mode to:
a vehicle computer for the vehicle having a vehicle sensor wiring harness coupled between the sensor simulator and the vehicle computer;an external computer adapted to control the sensor simulator to be selectively coupled to the vehicle computer by way of the vehicle sensor wiring harness and during the diagnostic mode to simulate the operation of a known good sensor without the sensor or any means of connection between the sensor and the automotive diagnostic system;a user keypad coupled to the external computer, and adapted to receive user commands associated with a selected manufacturers make, model, year vehicle, and the function type of the sensor to be simulated by the sensor simulator, and to enable the user to select or adjust a typical operational value of the sensor, anda memory device coupled to the external computer, and adapted to store a range of vehicle manufacturer's makes, models, years, sensor function types, and voltage, current or resistance operational range values of the sensor to be simulated: wherein during a typical vehicle operations mode the vehicle sensor wiring harness is coupled between the vehicle computer and a sensor which is to be simulated. |
