초록 ▼

A control apparatus for a motor vehicle which can be quickly unit tested during manufacture. Normally, the control apparatus processes signals from various operating condition sensors and applies them to determine the values of control signals to respective controlled elements, wherein there is a de

A control apparatus for a motor vehicle which can be quickly unit tested during manufacture. Normally, the control apparatus processes signals from various operating condition sensors and applies them to determine the values of control signals to respective controlled elements, wherein there is a delay between the starting of the engine and the use of one of the sensors, namely, the exhaust gas O2 sensor in determining the value of the respective control signal. To test the apparatus, signals simulating the outputs of at least one of the sensors are set to states which are improbable in acutal operation. Upon detecting such a condition, the control apparatus removes the delay from the starting of the engine and immediately applies all output signals from the sensors to determine their respective control signals.

대표청구항 ▼

A control apparatus for a vehicle, which apparatus can be rapidly tested prior to being placed in normal use, comprising: a plurality of sensors for detecting respective operating conditions at various portions of said vehicle, including an engine of said vehicle; a plurality of controlled elements

A control apparatus for a vehicle, which apparatus can be rapidly tested prior to being placed in normal use, comprising: a plurality of sensors for detecting respective operating conditions at various portions of said vehicle, including an engine of said vehicle; a plurality of controlled elements operated in response to output signals of said sensors; time measuring means for measuring a fixed time interval from a predetermined point in time; state detection means for detecting when an output signal of at least one of said sensors is in a predetermined improbable state which would not occur in normal operation of said control apparatus after said apparatus has been placed in normal use; and control determination means for reading output information from said sensor and processing said information in accordance with a predetermined procedure, with the output information of at least a first one of said sensors normally having no effect on the respective controlled element for said time interval measured by said time measuring means, said control determined means, upon detection of said improbable state which would not occur in normal operation by said state detection means, applying the output information of said first sensor to control said respective controlled element independently of said time determined by said time measuring means, and prior to the elapse of said time interval.