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Old 31st August 2016, 21:49   #91
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Default Re: TUV300 AMT problems & Mahindra's inability to solve them

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Originally Posted by Ashley2 View Post
Hill Hold in comparison to ESP is a simple feature, as without Acc pedal input the car should not move and you use service brakes to stop that.

Though Duster has as a combo, its absolutely not necessary to have both ESP and Hill hold together rather one can exist without other.
It's not so simple to implement - you need an electronic brain and a pump to actually apply pressure to the brakes, right? At that point of time, you have everything you need (except different algorithms) to implement ESP and hence, you will always find Hill hold control with ESP.

As an exercise, you can try finding any modern car with HHC, but without ESP
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Old 31st August 2016, 23:25   #92
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Tell me "Who in this World will buy a under powered TUV just to save Rs 8000/- ?".
i took a Scorpio taxi once in Kerala - Chengannur to Sabarimala and back. Was curious about the vehicle as it was my first time and looked at his RC book. The engine was lower powered than the regular white boards (65bhp) and the driver told me it was for conservation of fuel and control speed (to some extent). Am not saying that is the counter argument to your statement but recalled this incident when I read your post.
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Old 1st September 2016, 21:04   #93
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Default Re: TUV300 AMT problems & Mahindra's inability to solve them

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and a pump to actually apply pressure to the brakes, right?
Would holding (rather than generating) pressure work?

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Old 1st September 2016, 22:13   #94
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Default Re: TUV300 AMT problems & Mahindra's inability to solve them

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Would holding (rather than generating) pressure work?

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1) What kind of device would you use to hold the pressure?

2) You still need a sophisticated brain to control the aforementioned device. Any such device that can control the dynamics of the vehicle needs to be extremely reliable and resilient to failures, to avoid any untoward incidents. Imagine if it accidentally held on to the braking pressure while at a high speed!
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Old 2nd September 2016, 21:07   #95
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Default Re: TUV300 AMT problems & Mahindra's inability to solve them

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1) What kind of device would you use to hold the pressure?
The control valves used in an ABS implementation.

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2) You still need a sophisticated brain to control the aforementioned device.
The same brain (hardware) which controls the ABS.

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Old 2nd September 2016, 21:21   #96
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Default Re: TUV300 AMT problems & Mahindra's inability to solve them

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Originally Posted by Sutripta View Post
The control valves used in an ABS implementation.


The same brain (hardware) which controls the ABS.

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Sutripta
You're right - but it's lacking the accelerometer to detect a hill in the first place.

"Note that the hydraulic modulator is the same one used in an ABS system, meaning that ESC adds only the yaw sensor, an accelerometer, and steering angle sensor to a standard ABS system."

http://jalopnik.com/this-is-how-abs-...work-513807036
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Old 2nd September 2016, 21:32   #97
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Default Re: TUV300 AMT problems & Mahindra's inability to solve them

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You're right - but it's lacking the accelerometer to detect a hill in the first place.
But as you have mentioned later on, a far cry from a full blown ESP system.
And in this case the 'áccelerometer' needs to give only a Yes/ No signal (Am I on a gradient? Y/ N), rather than actual values. (Though to be fair, I don't think there is going to be any sensor cost difference if using a MEMS sensor).

There also used to be purely mechanical solutions to hill holding!

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