Dana Rexroth transmission systems
says it is working with engine manufacturers in the off-highway industry to support European stage V engine emissions regulations.
Its hydromechanical variable transmission (HVT) platform is already prepared for stage V emissions standards, and the firm is collaborating with leading engine manufacturers to develop transmission control software that will allow it to deliver a fully compliant solution.
HVT is the result of a joint venture between Dana and Bosch Rexroth, to significantly reduce fuel consumption by decreasing engine speeds throughout the duty cycle and also at idle, when speeds can drop to as low as 600rpm.
Application analysis has demonstrated the possibility of further fuel savings without compromising performance through engine downsizing.