A Novel Methodology of Enhancing
Vehicle Safety Using a Safety Valve
for Vehicle Wheels
T. Sundararajan, R. Muthuraj, P. Hariharan, and R. Srinivasan
Abstract The primary objective of this project is to use a supplementary valve
for releasing the excess pressure in a tubeless wheel for commercial vehicles. The
recommended cold inflation pressure for a wheel is 130–140 psi. During running
conditions, the pressure increases as the temperature of the wheel increases. So, the
PRV was designed in such a way that it must accept 20% of pressure rise in the tire
due to heat produced during running conditions. The PRV was designed to open up
at high tire pressure and to continue bleeding until it reaches a predetermined value.
One of the supplementary issue which the PRV reduced is the wheel unbalance issue.
The inflation valve adds up a mass in the wheel rim, which acts as an eccentric mass
and requires a balance weight to solve the unbalance. Here, addition of PRV will
reduce the amount of the external balance weight, since it adds up its own mass
vertically opposite to the inflation valve.
Keywords Pressure relief valve · PRV · Blow down pressure · Spring stiffness
1 Introduction
In tubeless commercial vehicle wheels, over inflation of the tyre causes a lot of issues,
like uneven tyre wear, lesser traction, flange bend, vibration issues, and including
catastrophic failures like tyre bursts [1]. Prevention of over inflation is also an indirect
T. Sundararajan · R. Muthuraj · P. Hariharan (B) · R. Srinivasan
Wheels India Limited R&D Center, Padi, Chennai, India
e-mail: hariharanofficialid@gmail.com
T. Sundararajan
e-mail: sundararajan_t@wheelsindia.com
R. Muthuraj
e-mail: muthuraj@wheelsindia.com
R. Srinivasan
e-mail: srinivasan_r@wheelsindia.com
© The Editor(s) (if applicable) and The Author(s), under exclusive license
to Springer Nature Singapore Pte Ltd. 2021
N. Gascoin and E. Balasubramanian (eds.), Innovative Design, Analysis
and Development Practices in Aerospace and Automotive Engineering, Lecture Notes
in Mechanical Engineering, https://doi.org/10.1007/978-981-15-6619-6_45
419
Vehicle Safety Using a Safety Valve
for Vehicle Wheels
T. Sundararajan, R. Muthuraj, P. Hariharan, and R. Srinivasan
Abstract The primary objective of this project is to use a supplementary valve
for releasing the excess pressure in a tubeless wheel for commercial vehicles. The
recommended cold inflation pressure for a wheel is 130–140 psi. During running
conditions, the pressure increases as the temperature of the wheel increases. So, the
PRV was designed in such a way that it must accept 20% of pressure rise in the tire
due to heat produced during running conditions. The PRV was designed to open up
at high tire pressure and to continue bleeding until it reaches a predetermined value.
One of the supplementary issue which the PRV reduced is the wheel unbalance issue.
The inflation valve adds up a mass in the wheel rim, which acts as an eccentric mass
and requires a balance weight to solve the unbalance. Here, addition of PRV will
reduce the amount of the external balance weight, since it adds up its own mass
vertically opposite to the inflation valve.
Keywords Pressure relief valve · PRV · Blow down pressure · Spring stiffness
1 Introduction
In tubeless commercial vehicle wheels, over inflation of the tyre causes a lot of issues,
like uneven tyre wear, lesser traction, flange bend, vibration issues, and including
catastrophic failures like tyre bursts [1]. Prevention of over inflation is also an indirect
T. Sundararajan · R. Muthuraj · P. Hariharan (B) · R. Srinivasan
Wheels India Limited R&D Center, Padi, Chennai, India
e-mail: hariharanofficialid@gmail.com
T. Sundararajan
e-mail: sundararajan_t@wheelsindia.com
R. Muthuraj
e-mail: muthuraj@wheelsindia.com
R. Srinivasan
e-mail: srinivasan_r@wheelsindia.com
© The Editor(s) (if applicable) and The Author(s), under exclusive license
to Springer Nature Singapore Pte Ltd. 2021
N. Gascoin and E. Balasubramanian (eds.), Innovative Design, Analysis
and Development Practices in Aerospace and Automotive Engineering, Lecture Notes
in Mechanical Engineering, https://doi.org/10.1007/978-981-15-6619-6_45
419