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:
Mar. 26, 2019
Filed:
Jul. 23, 2013
Mike Garrard, Chelmsford, GB;
Anoop K. Aggarwal, Bangalore, IN;
William E. Edwards, Ann Arbor, MI (US);
Philip Tobin, Huntersville, NC (US);
Mike Garrard, Chelmsford, GB;
Anoop K. Aggarwal, Bangalore, IN;
William E. Edwards, Ann Arbor, MI (US);
Philip Tobin, Huntersville, NC (US);
NXP USA, Inc., Austin, TX (US);
Abstract
An electronic control unit suitable for a motorcycle provides diagnostic support, tachometer drive and warning lamp drive all multiplexed onto one pin and driven by a single driver circuit. In a diagnostics mode, the pin is connected to diagnostic equipment. When a diagnostic test has been completed, a tachometer drive signal is output on the pin, the drive signal having a duty cycle set high enough to illuminate the warning lamp if a fault condition is detected by on-board sensors. By combining multiple functions onto a single pin with a single driver circuit, the cost of implementing an engine control unit may be reduced compared with existing arrangements which require separate pins and drivers for each function.