Development of a P3 5-Speed Hybrid AMT

Paper #:
  • 2017-26-0090

Published:
  • 2017-01-10
DOI:
  • 10.4271/2017-26-0090
Citation:
Prajapati, G., Chachra, D., Koona, R., Warule, P. et al., "Development of a P3 5-Speed Hybrid AMT," SAE Technical Paper 2017-26-0090, 2017, doi:10.4271/2017-26-0090.
Pages:
4
Abstract:
The necessity of hybrid vehicles and electric vehicles is well known by now for reasons like fossil fuel depletion, climate change, emission norms mandated by regulations etc. With the addition of electric motor, battery and associated power electronics, the cost of powertrain and hence the vehicle goes up, which is often a hindrance for OEMs and end-customers. With the objective to make a cost-effective strong hybrid, Tata Motors has approached this problem by taking economies of scale approach i.e. developing an add-on gearbox module, which can fit a family of cars, in a P3-off axis hybrid configuration to an electrically actuated AMT. This paper presents the preliminary simulations, which show this architecture yielding a reduction of fuel consumption by ~20% for a B-class sedan/compact SUV of ~1800kg and ~15% improvement in acceleration performance. Additionally, the design and packaging studies show the fitment possibility in a highly congested powertrain bay.
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