Questions tagged [automotive-engineering]
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How exactly does a tire hold up its internal metal wheel against gravity?
This question isn't about how the tire holds weight up against the ground based on its contact patch, I understand that. It's about what's happening inside the tire such that the wheel (the metal hub ...
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Is the Stop-Start technology detrimental or good for the car?
I found a lot of articles on internet about how bad the stop-start technology is for your car and how it contributes to the faster wear of multiple parts, or how superb the feature is for the Sacred ...
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Why would a high centre of gravity be beneficial under traction for an F1 car?
I’ve been watching a lot of racing recently, and one of the spectators said:
‘a high centre of gravity is beneficial under traction for an F1 car’
Why is this true? Is it even true? And what does ...
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Tire engineering - are "free rolling" and "slip ratio" defined with respect to a specific tire/road material pair?
Pacjeka states the following on his introduction to tire characteristics:
The upright wheel rolling freely, that is without applying a driving
torque, over a flat level road surface along a straight ...
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Modifying bike wiring harness to add hazard lights
I'm trying to modify my bike's harness.
Only trafficator functionality is supported by means of SPDT switch. I tried to add blinker functionality:
Kindly excuse the symbols for both Relay and Switch.
...
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Is it possible to calculate aligning torque from the driver steering torque?
I'm stuck on deriving the aligning torque because I neither have the lateral force nor the pneumatic trail. Is it possible to derive it from the drivers steering torque considering a rack has ...
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Calculate uphill efficiency on different gears
I was interested to find whether it would be more efficient to climb a hill on a lower gear, so I did some calculations.
I have the following data of a custom vehicle:
Gear
Drive force (N)
Max speed (...
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Is there a difference between deglazing and honing a cylinder?
I have not been able to figure out if deglazing means exactly the same as honing (when talking specifically about honing/deglazing a cylinder), or if there is some difference between the two?
I will ...
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Can somebody please help me identify this gearbox?
I want to identify whether this is a bevel gearbox/worm gearbox or a standard gearbox from an automobile. This is a tractor PTO driven winch.
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How can I make a needle to turn slowly CW to the final position, then return quickly CCW back to the initial position and to start again turning CW?
What I want is after the needle reaches 60 it should go back to 0 in the way showed in the image
The mechanism should preferably be based on gears which convert a steady continuous rotation to the ...
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Throttle position as a function of engine torque and speed
In the figure attached showing the throttle position versus an IC engine produced torque, I didn't understand why does the torque value at a specific rpm vary for different throttle positions. My ...
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Automatic car applying (seemingly) more torque upon throttle "liftoff"?
I drive a relatively average powered automatic transmission front-wheel drive car; my (naturally aspirated) engine delivers maximum torque at around 5000 RPM. I performed the following test (remaining ...
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How to calculate max load on a custom hitch?
Non engineer here. I'm interested in a conservative calculation of max trailer load for existing frame members for a truck I have. The truck is rated at ~8800lbs towing when stock and with a ...
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Calculation on gearbox design
I want to design a gearbox of 70hp input motor and speed of 1400rpm. The gearbox ratio is 1:10 of 2 stage parallel arrangements.
How do I calculate for the teeth, modules and other requirements ...
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How (mathematically) does pressure in the intake manifold vary based on size of throttle opening?
I have the intuitive picture somewhat down: the intake manifold is partially opened; during the intake stroke of a four-stroke process, the piston moves rapidly moves downwards creating a short-term ...
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