Development of an Objective Methodology for Assessment of Commercial Vehicle Gearshift Quality Ashok Leyland Technical Center

Format:

Conference/Event

Author/Creator:

Santosh, Santosh, author.

Contributor:

Chekuri, Vijayakumar

Conference Name:

SAE 2014 World Congress & Exhibition (2014-04-08 : Detroit, Michigan, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 2014

Summary:

AbstractRapid growth in the Indian economy has led to new market trends for commercial vehicles. Customers now expect high levels of comfort from all tactile points in a truck cabin; the gear lever knob is frequently used and its reactions greatly influence how a driver perceives Gear Shift Quality (GSQ) and thereby vehicle quality. The subjectivity of human perception is difficult to measure objectively; therefore this paper represents an objective methodology to correlate customer feedback of gearshift reactions.For the attribute evaluation of a set of intermediate commercial vehicles; detailed subjective appraisals were conducted by expert level assessors for GSQ sub-attributes, and a consecutive objective measurement was performed to investigate and substantiate these vehicle assessments. Dynamic and Static testing techniques were used to measure GSQ parameters like efforts during gear shift/select, feel of different phases of gear engagement /selection, gate definitions and lever travels; this helped in formulating objective metrics that can be used to create a definition of GSQ in a vehicle segment and an objective methodology to assess the same.The scope of this paper provides a comparative study of GSQ attributes in a set of intermediate commercial vehicles and explains how, the subjectivity of human perception with regard to gearshift comfort can be captured through objective testing methods and correlated

Notes:

Vendor supplied data

Publisher Number:

2014-01-0182

Access Restriction:

Restricted for use by site license