Mazda 2007 CX-9, Service Highlights

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AUTOMATIC TRANSAXLE [AW6A-EL, AW6AX-EL]
05-17–36
MANUAL MODE SHIFT CONTROL OPERATION [AW6A-EL, AW6AX-EL]
id051723102800
Manual Mode Shift
•
When the selector lever is shifted over from the D to M range position, the M range switch in the selector lever
component turns on, sending a manual mode command signal to the TCM which activates the manual mode
shift control.
•
When in manual mode and the selector lever is operated in the back (+) direction, the up switch in the selector
lever component is turned on and an up-shift command signal is input to the TCM.
—
The TCM, triggered by the up-shift command signal, carries out shifting by outputting an operation signal to
the shift control solenoid.
•
Conversely, when the selector lever is operated in the forward (–) direction, the down switch in the selector lever
component turns on, and a down-shift command signal is input to the TCM.
—
The TCM, triggered by the down-shift command signal, carries out shifting by outputting an operation signal
to the shift control solenoid if the vehicle speed is less than the set speed and the gear position is 2GR or
above.
•
The TCM utilizes a specialized M range automatic shift diagram. Due to this, restriction of manual shift demand
and automatic control of downshifting or upshifting is carried out, reducing load on the ATX, preventing engine
over-rev and ensuring drive stability.
•
If the engine speed reaches the excessive speed fuel cut zone while the shift lever is in the M range, the fuel
cut and supply occur repeatedly. Moreover, if the engine speed is not lowered, the engine speed is lowered by
a forced shift up of the gear to protect the engine.
Condition Shift control Note
2GR
→
3GR up-shift command at low speed
•
To reduce load on the ATX, upshifting is
inhibited until vehicle reaches speed possible
for upshifting
•
Selector indicator “M”
light and gear position
indicator light flash to
alert driver
3GR
→
4GR up-shift command at low speed
4GR
→
5GR up-shift command at low speed
5GR
→
6GR up-shift command at low speed
6GR
→
5GR down-shift command, above set
speed
•
To prevent engine over-rev, downshifting is
inhibited until vehicle reaches speed possible
for downshifting
•
Gear position
indicator light flash to
alert driver
5GR
→
4GR down-shift command, above set
speed
4GR
→
3GR down-shift command, above set
speed
3GR
→
2GR down-shift command, above set
speed
2GR
→
1GR down-shift command, above set
speed
In 6GR deceleration, speed goes below coast-
down set speed (deceleration down-shift)
•
To assure drive stability, automatically
downshifts from 6GR to 5GR
–
In 5GR deceleration, speed goes below coast-
down set speed (deceleration down-shift)
•
To assure drive stability, automatically
downshifts from 5GR to 4GR
In 4GR deceleration, speed goes below coast-
down set speed (deceleration down-shift)
•
To assure drive stability, automatically
downshifts from 4GR to 3GR
In 3GR deceleration, speed goes below coast-
down set speed (deceleration down-shift)
•
To assure drive stability, automatically
downshifts from 3GR to 1GR
In 2GR deceleration, speed goes below coast-
down set speed (deceleration down-shift)
•
To assure drive stability, automatically
downshifts from 2GR to 1GR
Wide open throttle at 85—95 km/h {53—58 mph}
in 5GR
•
To improve acceleration performance, 5GR
to 4GR kickdown occurs
–
Wide open throttle at 60—70 km/h {38—43 mph}
in 4GR
•
To improve acceleration performance, 4GR
to 3GR kickdown occurs
Wide open throttle at 36—44 km/h {23—27 mph}
in 3GR
•
To improve acceleration performance, 3GR
to 2GR kickdown occurs
3423-1U-06H(05-17).fm 36 ページ ２００６年１１月２１日 火曜日 午後５時１７分