| 摘要 |
PROBLEM TO BE SOLVED: To materialize traction control quickly recovering gripping force of a drive wheel on road surface. SOLUTION: A plurality of threshold values include at least a first and a second threshold value M<SB>1a</SB>, M<SB>1b</SB>, and the second threshold value M<SB>1b</SB>is set greater than the first threshold value M<SB>1a</SB>. The traction control includes control according to quantity reducing (retarding) ignition timing during traction control in a case that the monitor value M exceeds the second threshold value M<SB>1b</SB>as compared to a case that the monitor value M exceeds the first threshold value M<SB>1a</SB>and is less than the second threshold value M<SB>1b</SB>. COPYRIGHT: (C)2010,JPO&INPIT
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