DIRECT ELECTRONIC SHIFT CONTROL STRUCTURE


BHE051318901T09

Features

• According to signals from switches and sensors, direct electronic shift control drives the duty-cycle solenoid valves (shift solenoid valves A, B, C, F), regulates clutch pressure to suit engine load and vehicle speed, and electronically controls clutch pressure directly.

• As a result, minute hydraulic control is possible, unlike with conventional clutch engagement pressure control using an accumulator.

• Even for select lever operation, the TCM provides the optimum torque capacity of clutch to the engagement- and release-side clutches according to the transmission input torque (turbine torque).

Structure

System diagram

1
Turbine sensor
2
Throttle opening signal
3
Engine torque signal
4
Reduce torque signal
5
Turbine speed signal
6
Engine speed signal
7
TFT sensor
8
Oil pressure switch B
9
Oil pressure switch C
10
Oil pressure switch F
11
M range switch
12
Shift solenoid F
13
Shift solenoid B
14
Shift solenoid C
15
Shift solenoid A
16
Pressure control solenoid
17
Up switch
18
Down switch
19
Up/down signal
20
Steering shift switch