| 摘要 |
An engine management system for an engine having a rapid heating system for a catalytic converter or a fuel vaporiser, comprising a clock that continues to operate after the engine has stopped, to allow an estimate of the temperature of the catalytic converter or fuel vaporiser to be derived when restarting the engine. The clock is preferably the internal clock of a microprocessor constituting the management system (14), the latter being programmed to keep itself operating in a state of reduced activity until it determines that it would be safe to energise the heating system normally at the next start.
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