Voith Transit Bus Transmission Tech Yields Strong Fuel Efficiency Gains

8462_voith Voith Transit Bus Transmission Tech Yields Strong Fuel Efficiency Gains Voith GmbH, one of the world's largest multi-faceted engineering companies, recently completed field tests of its SensoTop transmission technology in a number of transit bus fleets, and the results showed that the fuel savings resulting from the Voith platform reacged as high as 7%.

The company performed the testing in Minneapolis; Salt Lake City; Austin, Texas; Lancaster, Pa.; Portland, Ore.; and San Mateo County, Calif. These tests were conducted over several weeks, and each fleet experienced fuel savings between 3% and 7%. Savings of over 12% were realized in Minneapolis during one week of testing.

SensoTop is an updated version of the software used to control Voith's DIWA.5 transmission, the company says. When combined with a maintenance-free inclination sensor that Voith has added to its ECU, the software allows the transmission to automatically adapt gear-shifting points based on acceleration, vehicle load and the topography of the route.

‘Can a transmission really save you money? As these tests have shown, the answer is a resounding 'yes,'’ says Brian Sharp, sales manager for the DIWA product line. ‘What's most impressive about these tests is that SensoTop achieves savings on diverse topographies and routes – both mountainous and flat, and those with frequent and infrequent stops.’

SensoTop, which has been approved for use with all Cummins engines, is available as a retrofit option accompanying all existing Voith DIWA.5 transmissions, and the technology will be offered on new buses this year.

About 250,000 buses worldwide use Voith automatic transmissions.

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