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Continued
FC System in Extreme Cold-weather Conditions
The FC system may behave differently on cold days. It may operate a special process
to improve start-up performance and durability. Operation noises, purge process
while parked, etc., differ from usual. However, this is not a malfunction.
On cold days, the power output may be temporarily limited if the vehicle is driven at
high vehicle speeds or accelerated suddenly before the FC system warm-up is
completed. Operate the vehicle looking out for the surrounding traffic until the FC
system reaches full operating temperature.
If the exhaust pipe is blocked, the power system may stop. In especially cold
weather, freezing prevention process while parked may not be able to be
performed. Also, the process cannot be carry out if the 12-volt battery terminals are
disconnected; consequently, the FC stack (fuel cell body) may deteriorate.
On cold days, the hydrogen gas may be consumed faster than usual.
On cold days, when the power system operates starting/stopping processes or
freezing prevention process while parked, water vapor in the exhaust may appear as
a white mist emitted from the exhaust pipe. This is not a malfunction.
1FC System in Extreme Cold-weather Conditions
When the power system operates stopping
process or freezing prevention process
while parked in cold weather, a puddle of
discharged water may form on the ground
and become frozen. Be careful not to slip
on it.
21 CLARITY FCV CSS-31TRT6400_02.book 423 ページ ２０２０年９月２５日 金曜日 午後３時１５分
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