Environmental Engineering Reference
In-Depth Information
Table 9.5 Trends in hybrid vehicle electric fraction
Vehicle Curb mass
(kg)
Engine
power (kW)
M/G power
(kW)
Electric
fraction (%)
Peak specific
power (kW/125 kg)
Civic
1,242
63
10
14
7.35
Prius
1,254
53
33/10
38
8.6
Escape
2,053
80
65/28
45
8.8
HSD
1,295
57
50/10
47
10.3
Hybrid synergy drive (HSD) goal is to match V6 performance with an I4 through 'electric
supercharging'.
9.7 Exercises
Model the Camry Hybrid single mode eCVT in Excel or other computer tool using
the following architecture diagram (same as RX400h) and the function for pro-
pulsion power,
P
(
V
), listed as
RX400h SUV hybrid
P
e
+
P
b
P
e
-
P
g
FD
400 kW V8
P
g
+
P
b
R
P
e
ICE
C1
C2
M/G1
S1
S2
M/G2
P
g
109 kW Gen
Dual
planetary
P
g
+
P
b
123 kW motor
P
b
45 kW battery
and converter
Batt
V
P
ð
V
Þ¼
MVV
:
þ
gC
rr
M
v
þ
gM
v
sin tan
1
%gr
100
1
2
r
air
C
d
A
f
ð
V
þ
V
w
Þ
3
þ
neglect grade and headwind.
