Automotive Technology (Custom)
6th Edition
ISBN: 9781337495356
Author: ERJAVEC
Publisher: Cengage
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Question
Chapter 1, Problem 1RQ
To determine
The effect of electronics and legislation on today’s vehicle.
Expert Solution & Answer
Explanation of Solution
The use of electronics in the design of modern vehicles is a rapid ongoing process. It has enabled safer and more fuel-efficient vehicles. Electric and hybrid vehicles could not have been developed and produced without the use of extensive electronic features. Over the time, the growth of electronics has accelerated and this trend is expected to continue as the automotive industries develops and continue to further progress vast in the modern automotive world.
Electronics is the function through which much of safety, security, convenience, comfort and efficient functions are provided in the modern vehicle technology. It has also influenced the design and types of the vehicles which make the vehicle to get better gas mileage as well as being environment friendly too.
The modern existing features like automatic emergency brakes, auto locking, and lightning makes the interiors of the vehicle more appealing as well as comfortable for the user. Without the electronics it could not be possible to meet the ultimate need of the vehicle.
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2. Read the following Vernier caliper measurements. (The scales have been
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Explain why on the interval 0<x<1000 mm and 1000<x<2000mm, Mt is equal to positive 160 Nm, but at x= 0mm and x=1000mm Mt is equal to -160 Nm (negative value!). What is the reason for the sign change of Mt?
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Gears
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A pair of helical gears consist of a 20 teeth pinion meshing with a 100 teeth gear. The pinion rotates at
Ta
720 r.p.m. The normal pressure angle is 20° while the helix angle is 25°. The face width is 40 mm and
the normal module is 4 mm. The pinion as well as gear are made of steel having ultimate strength of
600 MPa and heat treated to a surface hardness of 300 B.H.N. The service factor and factor of safety
are 1.5 and 2 respectively. Assume that the velocity factor accounts for the dynamic load and calculate
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[Ans. 8.6 kW
Chapter 1 Solutions
Automotive Technology (Custom)
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