Research Article

Adaptive Gearshift Strategy Based on Generalized Load Recognition for Automatic Transmission Vehicles

Table 4

Contrastive analysis of different gearshift schedules.

Working condition Adaptive gearshift strategy based on generalized load Dynamic three-parameter shift scheduleFormulation principle

Flat road01020.30.6161020.3Boundary point, maintain the original gear
02020.30.6162020.3Acceleration is equal
03021.60.8153021.6Acceleration is equal
04025.61.1884025.6Acceleration is equal
06032.12.2026032.1Boundary point, upshift to limit speed

Slope road (5.2%)1471023.60.1221023.6Boundary point, maintain the original gear
1472023.60.1222023.6Acceleration is equal
1473024.20.2613024.2Acceleration is equal
14740280.7234028Acceleration is equal
1476035.81.8046035.8Boundary point, upshift to limit speed

Slope road (14%)3891027.90.0641027.9Boundary point, maintain the original gear
3892027.90.0642027.9Boundary point, maintain the original gear
3893028.50.0643028.5Boundary point, maintain the original gear
3894033.10.0644033.1Boundary point, upshift to limit speed
3896042.11.1466042.1Boundary point, upshift to limit speed