A novel method for the design of regenerative brake system in an urban automotive

Environmental problems a nd fossil fuel limitations have made the automobile manufactures use renewable energies and energy recovery systems; therefore, particular attention has been paid to hybrid vehicles and/or biofuel vehicles. In this paper, the main objective is to study the appropriate strategy for choosing a better alternative to fossil fuels. Here, one of the strategies is using some devices in order to reduce the waste energies and the other is providing the condition in order to reuse the energies. For this purpose, the regenerative braking system could be mentioned as an energy recovery mechanism which slows a vehicle down by converting its energy into another form, which can be either used immediately or stored until needed. In this work, the design of regenerative braking system in hybrid vehicles has been considered and conducting a few tests, based on ISO 6469 standards; recycled energy at different speeds has been investigated. Also comparison of brake distance of this vehicle in two conditions, with and without regenerative braking has been made. The results show that this system is suitable in high speeds, but in low speeds conventional braking system has better efficiency.