Yoshitaka Hibino

Method for directing an up-shift operation for a vehicle with a manual transmission

Method of controlling operation of internal combustion engines in dependence upon intake air temperature

Idling speed-up control apparatus internal combustion engine

Control system for engine-driven generator

Method for indicating a vehicle operation in a fuel economy range for a vehicle with a manual transmission

Apparatus for detecting a neutral state of a transmission gear of a vehicle engine system

Air-fuel ratio feedback control method for internal combustion engines

Method of controlling an air/fuel ratio of a vehicle mounted internal combustion engine

Abnormality detecting device for exhaust secondary air supplying system

Abnormality detecting method for air-fuel ratio control system for internal combustion engines