DRIVE SELECTION SYSTEM [SKYACTIV-G 2.5]
id0121a1000100
Outline
• The drive selection system can switch the vehicle’s drive mode.
• When the sport mode is selected, the drive force response corresponding to the accelerator pedal operation is enhanced.
Function
• The standard and sport modes are available in the drive selection system and they can be switched by operating the drive selection switch.
Standard mode
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― This mode is suitable for normal driving or gentle acceleration.
Sport mode
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― This mode enhances the vehicle response to accelerator operation compared to the standard mode.
• When the mode is changed to the sport mode, engine and transaxle controls are changed as follows to enhance the vehicle response.
Engine control
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― Required engine torque relative to accelerator operation is increased to enhance the vehicle response.
Transaxle control
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― Lower gear is selected to eliminate time wasted due to shift change, enhancing the vehicle response.
Block Diagram
Operation
When sports mode is selected
1. When the sports mode is selected using the drive selection switch (1), the instrument cluster sends a drive selection signal to the TCM and the PCM via CAN communication (2). At the same time, it turns the select mode indication on (3).
2. When the PCM sends a drive selection signal to the TCM, the TCM will change the shift points. (4)
3. When the PCM receives the drive selection signal, it switches the control corresponding to the accelerator opening angle (5).
Drive selection switch inhibition conditions
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• If any of the following conditions is met, the mode is not switched even if the drive selection switch is operated.
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― During ABS/DSC/TCS control
― During sudden maneuvering
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• If the drive selection switch has been operated with a drive selection switching inhibition condition being met, the PCM sends a sport light flash request signal to the instrument cluster.
• The instrument cluster flashes the sport lamp to notify the driver that drive selection is currently prohibited.
Drive selection stop conditions
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• If any of the following conditions is met while in sport mode, the drive mode is canceled.
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― Ignition is switched off
― Cruise control or MRCC is operating.
― Malfunction with PCM control-related part
