초록 ▼

An analyzer for an electrical vehicle control system which includes a self-contained power source to allow excitation and evaluation of individual components in the control system. The analyzer plugs into the control system and includes a plurality of switches for selectively connecting various outp

An analyzer for an electrical vehicle control system which includes a self-contained power source to allow excitation and evaluation of individual components in the control system. The analyzer plugs into the control system and includes a plurality of switches for selectively connecting various output terminals of the analyzer to internal logic circuits for monitoring the operation of selected components of the control system on an individual basis.

대표청구항 ▼

Test apparatus adapted for connection to an electric vehicle propulsion control system of the type wherein a power control system comprising plural types of electrical components supplies regulated electric power from a traction battery to electric traction motor means, and a logic circuit is normal

Test apparatus adapted for connection to an electric vehicle propulsion control system of the type wherein a power control system comprising plural types of electrical components supplies regulated electric power from a traction battery to electric traction motor means, and a logic circuit is normally connected to control the operation of the power control system, said test apparatus being adapted for connection to said propulsion control system in lieu of said logic circuit for testing individual components of said power control system in situs, and comprising: a. a plurality of output terminals adapted for simultaneous connection to said propulsion control system; b. plural switching means adapted to be selectively actuated, in accordance to the individual one of said components to be tested; c. a plurality of indicating means adapted to provide a discrete indication of performance of components being tested; d. a plurality of voltage comparators, each comprising first and second inputs and an output coupled to at least one of said indicating means; e. a first group of said output terminals being adapted for connection in circuit with said traction battery and with predetermined ones of the components of said propulsion control circuit; and f. connection means connecting said first group of output terminals, in circuit with predetermined ones of said switching means and the inputs of said voltage comparators such that upon actuation of selected ones of said predetermined ones of said switching means a first signal produced by application of the traction battery to a circuit comprising the component under test is applied to a first input of one of said comparators and a second signal representative of the voltage of said traction battery is applied to a second input of said comparator whereby said indicating means provides a discrete indication of component performance irrespective of voltage variations of said traction battery within a predetermined range.