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Technical Paper

Fuel Efficient Algorithm for Climate Control in Next Generation Vehicles

2017-01-10
2017-26-0370
Automobile industry is shifting its focus from conventional fuel vehicles to NexGen vehicles. The NexGen vehicles have electrical components to propel the vehicle apart from mechanical system. These vehicles have a goal of achieving better fuel efficiency along with reduced emissions making it customer as well as environment friendly. Idle start-stop is a key feature of NexGen vehicles, where, the Engine ECU switches to engine stop mode while idling to cut the fuel consumption and increase fuel efficiency. Engine restarts when there is an input from driver to run the vehicle. There is always a clash between the Engine ECU and automatic climate control unit (Auto-AC) either to enter idle stop mode for better fuel efficiency or inhibit idle stop mode to keep the compressor running for driver comfort. This clash can be resolved in two ways: 1 Hardware change and, 2 Software change Hardware change leads to increase in cost, validation effort and time.
Technical Paper

Estimating Drive Cycle for E-Rickshaws Using Real World Operating Scenarios for Overall Powertrain Improvements

2019-11-21
2019-28-2497
E-Rickshaws are popular and convenient mode of transportation for last mile connectivity and are typically used for short distance (<10 Km) commute. As per recent reports there are more than 1.5 million e-rickshaws plying on Indian roads and approx. 10,000 vehicles are adding every month. Owners of these vehicles are inclined towards the overall range these vehicles can give on a single charge. Range can be improved by using efficient powertrain. Range can also be improved by optimized Battery Management systems and Controllers. Though there are certain evaluation criteria (such as curtailed Indian Drive Cycles) which can be used for efficiency estimations, manufacturers are more interested in extending the range in real world scenarios. Hence, the availability of real-world drive cycle is imperative. Through this paper, we have attempted to derive a typical drive cycle by collecting road data of various types of e-Rickshaws under different environment conditions.
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