Performance Optimization of Bias Bar-Type Brake System Using Data Acquisition System (DAQ) Megh Doshi, Suhrid Subramaniam, Sachin Patel and Meet Shah Abstract The key factor involved in the proper functioning of brake system of a vehicle with dual master cylinder is brake biasing. In order to accomplish this, a bias bar with spherical bearing is used to set correct biasing of the hydraulic system which is actuated with single brake pedal. We have done the practical simulation of bias bar system in our BAJA SAE vehicle by using a self-designed DAQ system to measure the pedal effort and the corresponding brake pressure. The optimal position of the bias bar is experimentally validated based on the various positions of the spherical bearing in the pedal housing to obtain locking of all wheels using minimal pedal effort by using real-time data values. Keywords Master cylinder · Bias bar · DAQ 1 Introduction Inhibition of motion of vehicles to avoid collision can be done by using brakes. When brakes are actuated, weight transfer takes place from rear to front of the vehicle. Therefore, brake biasing becomes crucial. The bias bar-based brake system is used in vehicles having dual master cylinders. The bias bar along with the spherical bearing is fabricated for proportioning the brake pressure. The front and the rear brake lines are equipped with brake pressure sensors which are used to measure the front to rear M. Doshi (B ) · S. Subramaniam Electronics and Telecommunication Department, DJSCE, Vile Parle(W), Mumbai 400056, India e-mail: doshimegh@yahoo.co.in S. Subramaniam e-mail: suhridsubramaniam@gmail.com S. Patel · M. Shah Mechanical Department, DJSCE, Vile Parle(W), Mumbai 400056, India e-mail: sachinpatel1729@gmail.com M. Shah e-mail: shahhmeet.1998@gmail.com © Springer Nature Singapore Pte Ltd. 2019 H. Vasudevan et al. (eds.), Proceedings of International Conference on Intelligent Manufacturing and Automation, Lecture Notes in Mechanical Engineering, https://doi.org/10.1007/978-981-13-2490-1_61 661