| 摘要 |
PROBLEM TO BE SOLVED: To provide a lighting device of a motorcycle which can discriminate a state of a headlight switch to which an alternate current is applied, and can alleviate load of a control part while suppressing cost increase.SOLUTION: In a lighting device of a motor cycle having a regulator part 3 which converts an alternate current of a generator 2 into a half-wave current which is supplied to a headlight 7, a headlight switch 6 interposed between the regulator part 3 and the headlight 7, and a control part 8 which discriminates a state of a vehicle, the lighting device of the motorcycle comprises: an input circuit 10 which generates an ECU detection pulse Pf synchronized the half-wave current which is converted by the regulator part 3; a storage part 12 which temporarily stores a state of the ECU detection pulse Pf at preset timer processing timing T; and a conversion pulse generation part 11 which generates an in-ECU conversion pulse Pe on the basis of the state of the ECU detection pulse which is stored in the storage part 12. The control part 8 discriminates an on/off-state of the headlight switch 6 on the basis of a state of the in-ECU conversion pulse Pe. |
