Diagnostic testing of rapid heat up of an exhaust sytem during engine decompression
AssigneeRobert Bosch GmbH
InventorBrent Keppy
Life of this patent
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Abstract
A method and a device for performing diagnostics on a vehicle. The diagnostic system includes a sensor configured to sense an operating speed of an engine of the vehicle, a diagnostic output device, and an electronic processor. The electronic processor is communicatively coupled to the sensor and the diagnostic output device. The electronic processor is configured to activate and deactivate a decompression mode of the engine. The electronic processor acquires the operating speed of the engine from the sensor and determines an engine roughness based on the operating speed of the engine. When the engine roughness is below a threshold, the electronic processor sends a diagnostic signal to the diagnostic output device.
Claims18
A diagnostic system for monitoring a vehicle, the diagnostic system comprising:
- a sensor configured to sense an operating speed of an engine of the vehicle;
- a diagnostic output device;
- and
- an electronic processor communicatively coupled to the sensor and the diagnostic output device, the electronic processor configured to
- activate a decompression mode of the engine;
- acquire the operating speed of the engine from the sensor;
- determine an engine roughness based on the operating speed of the engine;
- and
- when the engine roughness is above a threshold, send a diagnostic signal to the diagnostic output device.
A method of performing diagnostics for a vehicle, the method comprising:
- activating, by an electronic processor, a decompression mode of an engine;
- acquiring, with the electronic processor, an operating speed of the engine from a sensor;
- determining, with the electronic processor, an engine roughness based on the operating speed of the engine;
- and
- sending a diagnostic signal to a diagnostic output device when the engine roughness is below a predetermined threshold.
Dependencies are inferred from the claim text.