Regenerative Brake Technology is an area of expertise in which we believe we at Fiba Canning have unsurpassed experience .
Since 1993, our field tests have demonstrated that this technology is eminently suitable for garbage trucks and urban buses - vehicles which apply the brakes frequently. One of our demonstration vehicles has aired twice on The Discovery Channel. Another collected fares as an urban transit bus for 2 years (and counting).
Simply put, what we do is capture the energy created by the application of brakes, instead of wasting all that energy in wearing out brake linings and so on. Our system uses hydraulics to store that energy and propel the vehicle as the energy is required.
Given an appropriate order, we can outfit vehicles at a premium of roughly 10%, with a payback period, depending on usage, of 9 - 18 months.
Cumulo hydrostatic transmission with energy storage is primarily intended for use in vehicles which start and stop frequently and/or carry a heavy workload within limited distances.
Energy in the form of pressurized hydraulic fluid is stored in accumulator, and is recycled for use in the acceleration of the vehicle.
Benefits of the system:
The hydrostatic system is connected to the vehicle engine and the rear axle. The system consists of the following four main components:
Legend: 1) Throttle signal 2)Brake signal 3) Signal to the engine control 4) Control of the transmission 5) Speed signal 6) Volume signal a) Hydraulic machine b) gear 3) Pressure accumulator d) Fluid tank e) Electronic control unit
By means of electrical sensors, the system picks up the information in the form of the driver's control signals (throttle/brakes) and the operating mode of the transmission after processing in an electronic control unit, signals are sent to the engine and hydraulic system.
DESCRIPTION OF FUNCTION - The Cumulo Hydrostatic DriveThe Cumulo Hydrostatic Drive transmits propulsive power from the source to the user.
The system has two clearly defined sections:
The users requirement for power is governed at the secondary side, i.e. a drivers request for power via the accelerator will control the hydraulic machine connected to the drive axle. The secondary control with its microprocessors and accumulator consequently ensures an efficient utilization of available energy. The energy source will always supply power from the hydraulic machine to the accumulator and fill it to a predetermined level. Similarly, the brake energy from deceleration will, as a rule, be stored in the accumulator.
The control strategy is based on the conditions that:
Acceleration from standstill is consequently performed by means of the stored energy. This energy will ensure a low noise level and minimized exhaust emissions. The size of the energy storage is dimensioned on basis of vehicle weight and operating cycle.