Apparatus for testing a control system for automotive vehicle
First Claim
1. An apparatus for testing a system which controls various devices mounted on an automotive vehicle, said system including a plurality of sensors for sensing various operational conditions of the automotive vehicle to output signals representing the operational conditions, a control unit responsive to the signals from said plurality of sensors to output various control signals, and a plurality of actuators responsive to the control signals to control corresponding devices, said apparatus comprising:
- a dummy signal generator for producing a plurality of dummy signals corresponding to the signals from said plurality of sensors;
a plurality of dummy loads substantially electrically equivalent to said plurality of actuators;
an input changeover means for selectively connecting each of either the signals from said sensors or the dummy signals to said control unit;
an output changeover means for selectively connecting each of either said plurality of actuators or said dummy loads to said control unit; and
means for measuring the control signals from said control unit.
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Accused Products
Abstract
Actual signals from various sensors which sense the operational state of an internal combustion engine, or dummy signals from a dummy signal generator, are selectively supplied to a control unit. This unit calculates from the actual or dummy signals and outputs control signals which are then selectively supplied to actual loads, such as actuators, or dummy loads, thereby determining the control signals under respective conditions.
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Citations
11 Claims
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1. An apparatus for testing a system which controls various devices mounted on an automotive vehicle, said system including a plurality of sensors for sensing various operational conditions of the automotive vehicle to output signals representing the operational conditions, a control unit responsive to the signals from said plurality of sensors to output various control signals, and a plurality of actuators responsive to the control signals to control corresponding devices, said apparatus comprising:
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a dummy signal generator for producing a plurality of dummy signals corresponding to the signals from said plurality of sensors; a plurality of dummy loads substantially electrically equivalent to said plurality of actuators; an input changeover means for selectively connecting each of either the signals from said sensors or the dummy signals to said control unit; an output changeover means for selectively connecting each of either said plurality of actuators or said dummy loads to said control unit; and means for measuring the control signals from said control unit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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Specification