Toyota 7FBEF 15, Service Manual

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1-6
3. Improved Efficient Operation Hour
The accelerator-off regeneration system is added to the AC drive system for longer operation
compared to the previous models. The power up function is also adopted for longer efficiency
operation hours.
Power keep function
(Setting to the P mode at the Efficiency-preference and the S mode for Operation-hour-preference)
The power keep function has been developed as the new control in new models for maintaining the
discharged battery performance by making use of the wider motor control range of the AC motor drive
system.
• The efficiency operation hours allowing operation without feeling performance degradation
is improved by 40% by adoption of the power keep function and extension of the operation
hours.
• The number of operation cycles without feeling performance degradation is also improved by
40%.
This new function actually improves the operation efficiency at each customer greatly.
However, note that efficient operation becomes hard when the battery level indicated by the battery
charge indicator becomes one bar (battery discharge to about 90%).
1.1
1
0.9
0.8
0.7
0% 20% 40% 60% 80% 100%
Decrease in
performance
Low remaining battery charge warning
Previous model (1.5t)
Efficiency operation hour:2H20m
(440AH/5hr)
Previous model (1.5t:S mode)
Efficiency operation hour:3H20m
(440AH/5hr)
New model
Previous model
Battery discharge level (%)
Battery usage
limit range
Full load performance
Lift interruption
25%UP
40%UP
52% UP
17% UP
min
350
270
230
7FBEF15 5FBE15
(DIN 5PzS550L)
S mode
7FBEF15
(DIN 4PzS440L)
S mode
1.5 ton