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Transmission – Jaguar XK JJM 18 02 30 701 User Manual

Page 142

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159

Transmission

R

Shift adapt under braking: Under
braking, the transmission will vary the
down-shift point in proportion to braking
effort and road gradient. This feature is
realised in conjunction with positive
torque, resulting in a smoother
down-shift.

Note: This feature will vary its activation,
dependant upon the driver type if S -
Sport is selected.

Positive torque: Provides throttle blips
on down-shifts under braking, improving
shift feel.

Note: This feature is only active in S -
Sport mode.

Corner recognition: Inhibits up-shifts
during cornering to provide improved
vehicle balance.

Note: This feature will vary its activation,
dependant upon the driver type if S -
Sport is selected.

Road gradient adaption: When the
vehicle is being driven on roads with uphill
gradients, the transmission adapts the
shift pattern to make better use of engine
power.

When driving on roads with long downhill
gradients, the transmission may
automatically select a lower gear to
increase engine braking. Selecting S will
increase the tendency of the transmission
to select a lower gear in these conditions,
further increasing engine braking.

Note: It is also possible to manually select
a lower gear to increase engine braking via
use of the shift paddles.

Cruise control: When cruise control is
active, the transmission selects a shift
pattern to suit cruise control operation,
see page 169.

Dynamic stability control (DSC): When
DSC is switched ON and the system is
activated, the transmission selects a shift
pattern to suit traction control conditions.

Manual operating modes - Jaguar
Sequential Shift

Shifts in the Jaguar Sequential Shift
manual mode are optimised to provide a
rapid response to gear shift requests.
Up-shift requests are optimised for
performance via the short shift function,
this will result in a firmer shift feel than in
automatic modes. Down-shift requests
realise a throttle blip during the shift event
resulting in improved shift feel.

The Jaguar Sequential Shift modes can
be accessed either temporarily or
permanently.

Temporary manual gear selection:
When the gear selector is in the D
position, manual mode may be directly
accessed by the single action of
operating the steering wheel mounted
shift paddles.

This convenience feature allows
immediate but temporary use of the shift
paddles whilst the gear selector is in D.

If continued use of manual mode is
required, the gear selector may be
subsequently moved to the S position to
enter permanent manual mode in the
currently selected gear.

If the gear selector remains in the D
position, temporary manual mode will be
held whilst the driver is accelerating,
decelerating, cornering or continuing to
request shifts via the paddles.