Honda CR-V 1997 Service Manual page 535

Ascending Control ('97 Modell
When the PCM determines that the vehicle is climbing a hill in
[Q;J
and
[Qi]
positions, the system extends the engagement
area of 2nd gear and 3rd gear to prevent the transmission from frequently shifting between 2nd and 3rd gears, and
between 3rd and 4th gears, so the vehicle can run smooth and have more power when needed.
NOTE:
• Shift schedules stored in the PCM between 2nd and 3rd gears, and between 3rd and 4th gears, enable the PCM's fuzzy
logic to automatically select the most suitable gear according to the magnitude of a gradient.
• Fuzzy logic is a form of artificial intelligence that lets computers respond to changing conditions much like a human
mind would.
1000/
0
o
Ascending Control ('98 - 00 Modelsl
2ND- 3RD
62 mph
1100 km/hl
ASCENDING MODE: Upshift Schedule
- - - : FLAT ROAD MODE
•••••••••••. : GRADUAL ASCENDING MODE
- . - - - . - : STEEP ASCENDING MODE
h}~"t3i!4!1~
:
2ND·3RD SHIFTING CHARACTERISTICS
. . CONTROL AREA
HE'> .! :
3RD·4TH SHIFTING CHARACTERISTICS
CONTROL AREA
Vehicle
speed
When the PCM determines that the vehicle is climbing a hill in
[Q;J
and
[Qi]
positions ('98 model), and in
lID
position ('99 -
00 models), the system extends the engagement area of 2nd gear and 3rd gear to prevent the transmission from frequent-
ly shifting between 2nd and 3rd gears, and between 3rd and 4th gears, so the vehicle can run smooth and have more
power when needed.
NOTE: Shift schedules stored in the PCM between 2nd and 3rd gears, and between 3rd and 4th gears, enable to select the
most suitable gear according to the magnitude of a gradient.
50
2ND ... 3RD 3RD ... 4TH
62 mph
1100 km/hl
ASCENDING MODE: Upshift Schedule
~
: 2ND·3RD SHIFTING CHARACTERISTICS
CONTROL AREA
~
: 3RD·4TH SHIFTING CHARACTERISTICS
CONTROL AREA
Vehicle speed
(conl'd)
14-19