Electronic Control System (cont'd)
Shift-Hold Control
When negotiating winding roads, the throttle is suddenly released and the brakes are applied, as is the case when decelerating at the entrance of a curve, shift-hold control keeps the transmission in its current (lower) ratio as it negotiates the corner and accelerates out.
When the vehicle is driven aggressively on a winding road, the PCM will extend the engagement time of 3rd gear and 4th gear to prevent the transmission from frequently shifting between 3rd, 4th, and 5th gears. This allows the driver to have more control for both acceleration and deceleration.
The PCM monitors the average change in the vehicle speed and throttle over time. When these values exceed those for normal driving conditions, the up-shift from 3rd to 4th gear and 4th to 5th gear is delayed. This gives more control over power, and the engine braking when the driver is driving aggressively around winding roads. The transmission will resume the normal up-shift pattern after the PCM determines that normal driving has resumed.
Shift Control - Manual Shift Mode
The transmission is provided with a D-paddle shift mode in D, and with a sequential shift mode in S. Both modes are entered by pulling the paddle shifter + (upshift switch) or the paddle shifter − (downshift switch) while driving.
D-Paddle Shift Mode
When the transmission is switched into the D-paddle shift mode by pulling the paddle shifters while driving in D, the transmission can shift into a lower gear by pulling the paddle shifter − (downshift switch), and it can shift into a higher gear by pulling the paddle shifter + (upshift switch). When the transmission shifts into a lower gear or a higher gear by pulling the paddle shifters, the shift indicator in the gauge control module displays the number of currently selected gear. This number of the gear goes off when the transmission downshifts automatically, or when the transmission upshifts automatically while coasting.
The transmission stays in 5th gear if the paddle shifter + is pulled when driving in 5th gear, and the shift indicator displays ‘‘5'' in 2 seconds, then goes off. The transmission stays in 1st gear if the paddle shifter − is pulled when driving in 1st gear, and the shift indicator displays ‘‘1'' in 2 seconds, then goes off.
The transmission stays in the current gear and does not upshift to the next higher gear if the paddle shifter + is pulled while driving below the minimum allowable speed, and the shift indicator blinks the number of the next higher gear several times, then returns to the number of the current gear.