Mechanical Inertia of CVT Power Train of Passenger Car during Acceleration
- Delivery
- Available on this site
- Format
- Price
- Non-members (tax incl.)：￥1,100 Members (tax incl.)：￥880
- Publication code
- 20080548
- Paper/Info type
- AVEC
- Pages
- 1-7(Total 7 p)
- Date of publication
- Oct 2008
- Publisher
- Others, Unknown
- Language
- English
- Event
- AVEC '08
Detailed Information
| Category(E) | Powertrain and Drivetrain Control II |
|---|---|
| Author(E) | 1) J. Mamala, 2) J. Jantos, 3) S. Brol |
| Affiliation(E) | 1) Opole Univ. of Tech., 2) Opole Univ. of Tech., 3) Opole Univ. of Tech. |
| Abstract(J) | 車の加速品質向上のためにはエンジンとの協調よりも制御準拠のCVTが有望．ただし，表記慣性の影響で不規則な振動変動を生じたが，変速比の変化幅を制限した本制御では車両加速度の漸減を実現しながら変速時駆動力変動の問題を解消し，さらに大幅な燃費向上を達成．SIエンジンの電子制御スロットルと相まって，CVTの新制御手法を実証した． Translation |
| Abstract(E) | Ability to accelerating a passenger car at rapid depressed an accelerator pedal is one of main conditions of the active safety. This situation takes place during overtaking process, which is caused by driving force deficiency from engine and powertrain mechanical inertia. It has negative influence on overtaking process and also on driving comfort. This phenomenon mainly come from accumulation of mechanical energy of powertrain. It leads to driving force drop as a result of energy accumulation in first phase of the overtaking process, and in the next phase leads to arising excessive driving force on wheels. In power transmission systems with constant power supply e.g. CVTs characterised by a large differentiation of kinematic transmission, the investigated issue plays an important role. In order to secure a prompt response of such transmission systems a variety of control strategies is proposed. Particular attention is devoted to transmission systems with zero inertia, which apply an supplementary power source (device applying inertia or electrical motor) to assist the engine in accelerating in the transition phase. Due to the large complexity of those systems an alternative construction is proposed, one which does not apply a hybrid drive. The compensation of mechanical inertia secured by a short-term engine supercharging. This supercharging is performed with the aid of compressed air chamber. |
