Can a dual-clutch transmission be equipped with an energy storage device

Can a two-speed dual-clutch gearbox be used for electric vehicles?

Most electric vehicles today use gearboxes with multiple speeds. The transmission systems on traditional cars using internal combustion engines can be used for electric vehicles. In this paper, the author presents the research result on the gearshift strategy of a two-speed dual-clutch gearbox applied on electric vehicles for energy efficiency.

What are the benefits of a dual clutch transmission?

The main benefits of dual clutch transmissions (DCTs) are: (i) a higher energy efficiency than automatic transmission systems with torque converters; and (ii) the capability to fill the torque gap during gear shifts to allow seamless longitudinal acceleration profiles.

What is a dual-clutch transmission (DCT)?

The pure EV powertrain system under considerations, as shown in Figure 1, is equipped with a dual-clutch transmission (DCT) with only two speeds. Aluminum alloy is used to make this two-speed DCT housing. The clutch pack of DCT includes two multi-plate wet clutches, inner clutch (C1) and outer clutch (C2).

How does a double clutch work?

By using double clutches, DCT transmits or blocks power from the engine directly like a manual trans-mission. Therefore, DCT can also imporve fuel efficiency by minimizing power transmission loss. In addition, DCT enables quickshiftingandminimizesshiftingshockbyusingclutchactu-ator and engine control properly.

Are DCTs a viable alternative to automated manual transmissions (AMTs)?

Therefore, DCTs are viable alternatives to automated manual transmissions (AMTs). For vehicles equipped with engines that can generate considerable torque, large clutch-slip energy losses occur during power-on gear shifts and, as a result, DCTs need wet clutches for effective heat dissipation.

Does a DCT transmit the same clutch torque?

Therefore, energy consumption of actuator can be compared through a shift experiment that each DCT transmits same clutch torque. Section IV-B showed the self-energizing gain is relatively constant, which means that clutch torque can be controlled through force control of actuator when clutch slip occurs.