A study on road slope estimation for automatic transmission control

被引：39
|
作者：
Ohnishi, H
Ishii, J
Kayano, M
Katayama, H
机构：
[1] Hitachi Ltd, Hitachi Res Lab, Hitachinaka 3128503, Japan
[2] Hitachi Ltd, Automot Prod Div, Hitachinaka 3128503, Japan
来源：
JSAE REVIEW | 2000年 / 21卷 / 02期
关键词：
powertrain; automatic transmission/road slope estimation; acceleration sensor; output torque estimation;
D O I：
10.1016/S0389-4304(99)00097-1
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
We studied two algorithms for road slope estimation to avoid needless shifting when vehicles with automatic transmissions are running uphill and downhill. One algorithm makes an estimation using a longitudinal acceleration sensor and the other makes an estimation using estimated vehicle output torque. The former is expected to estimate road slope more accurately than the latter, but the former is more expensive because an additional acceleration sensor is needed. The two algorithms were implemented on the transmission control unit and compared experimentally. We found the latter could estimate road slope accurately enough to avoid needless shifting. (C) 2000 Society of Automotive Engineers of Japan, Inc. and Elsevier Science B.V. All rights reserved.
引用
收藏
页码：235 / 240
页数：6
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