The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 14, 1986
Filed:
Mar. 17, 1983
Michimasa Horiuchi, Katsuta, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
An electric vehicle driven by a D.C. series motor is disclosed in which electric power is supplied from a battery to the motor through a chopper, and in which forward-motion and backward-motion commands generated by the switch operation of a driver and a torque command from an accelerator pedal are supplied to a control device having a microprocessor, to control the chopper. The control device further includes storage means which has stored therein a trouble shooting program in addition to a program for making an ordinary running control for the electric vehicle, and is provided with a connector jack for connecting a trouble-shooting operation part to the control device. When a starting switch provided in the trouble-shooting operation part is operated in the state that the trouble-shooting operation part is connected to the control device, the control device reads out the trouble shooting program, carries out trouble shooting, and displays the results of trouble shooting on a display device provided in the trouble-shooting operation part.