SYSTEM AND METHOD FOR DEMONSTRATING FUNCTIONALITY OF ON-BOARD DIAGNOSTICS FOR VEHICLES
First Claim
1. A method for demonstrating operation of on-board diagnostics in a vehicle, the method comprising:
- dynamically modifying at least one control system parameter value associated with a vehicle hardware component in response to a request to demonstrate operation of the diagnostics; and
controlling the vehicle using the at least one modified parameter value to imitate performance degradation of the vehicle hardware component.
2 Assignments
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Accused Products
Abstract
A system and method for demonstrating or testing operation of on-board diagnostics in a vehicle include imitating performance degradation of a vehicle hardware component and/or associated vehicle system by dynamically modifying at least one control system parameter value associated with the hardware component in response to a request to demonstrate operation of a selected diagnostic function or a specified performance degradation. Embodiments modify at least one control system parameter value associated with the input/output signal of a sensor/actuator to imitate a specified performance degradation. The diagnostics independently monitor operation of various vehicle control systems and operate to detect the degraded performance without knowledge of, or distinguishing between, whether the performance degradation was caused by an actual hardware component, or by the requested modification to the control system parameter value(s) associated with a particular hardware component.
23 Citations
20 Claims
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1. A method for demonstrating operation of on-board diagnostics in a vehicle, the method comprising:
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dynamically modifying at least one control system parameter value associated with a vehicle hardware component in response to a request to demonstrate operation of the diagnostics; and controlling the vehicle using the at least one modified parameter value to imitate performance degradation of the vehicle hardware component. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A system for demonstrating operation of on-board diagnostics in a vehicle having an internal combustion engine, the system comprising:
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at least one sensor for providing a signal corresponding to a current vehicle operating condition; at least one actuator for positioning a vehicle component; a control module in communication with the at least one sensor and at least one actuator, the control module modifying at least one control system parameter value associated with the at least one sensor and/or the at least one actuator in response to a request to demonstrate operation of the on-board diagnostics, and controlling the vehicle based on the modified value to imitate degraded performance of the at least one sensor and/or at least one actuator. - View Dependent Claims (15, 16, 17, 18)
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19. A computer readable storage medium having stored data including instructions executable by a computer to control a vehicle to demonstrate functionality of on-board diagnostics for the vehicle, the computer readable storage medium comprising:
instructions for changing vehicle operation in response to a request to demonstrate functionality of the on-board diagnostics by changing at least one parameter value used to control the vehicle such that the vehicle operates similar to operation using a degraded component, the vehicle operation activating the on-board diagnostics to demonstrate functionality. - View Dependent Claims (20)
Specification