STEV is the next generation in fully electric mining vehicles

STEV (subterranean electric vehicle) is an innovative fully electric automobile and the next generation in mining vehicles, specifically designed for the harsh environment and rigorous duty cycle required to operate in underground environments. it features an industry first hybrid charging system which allows for both off-board DC fast charging and on-board AC opportunity charging. in addition, the vehicle also features a dynamic braking system that prevents unwanted accelerations and maximizes range by converting excess kinetic energy in to electrical energy. STEV reduces an organization’s carbon footprint, maximizes energy efficiency and minimizes operating costs.

STEV provides consistent, intuitive and transparent operational feedback and a tuned suspension to create a more pleasurable driving experience. miners can develop respiratory-related disease or death due to exposure to diesel emissions in underground mines. to mitigate such danger mechanical ventilation must be provided, constituting a large portion of a mine’s operating budget. in response STEV offers health, environmental, and reliability benefits and makes positive financial sense.

miller technology developed STEV over a 2.5-year period to meet the evolving needs of global mining operations while recognizing the need to match or surpass the performance of traditional diesel equipment. high strength alloy steel construction maximizes safety in roll over and falling objects situations and minimizes overall weight. the vehicle is also equipped with a powerful mid-ship mounted motor with dual output flanges resulting in impressive full time 4-wheel drive.

miller’s system vastly reduces the number of moving parts, maintenance costs, and downtime. battery modules used in the energy storage system have passed rigorous highway and marine testing standards to ensure the utmost safety. our modular arrangement makes it possible to adapt the platform to various usage cases. all major systems are equipped with a liquid loop that is primarily utilized for cooling but can be adapted to allow for heating in extremely low temperature environments.

its hybrid charging system allows both off-board CCS type 2 DC fast charging and optional on-board charging for opportunities anywhere in a mine. range is enhanced and maintenance costs reduced through an innovative dynamic braking system preventing unwanted acceleration and by converting excess kinetic energy in to electrical energy. STEV is easily configured in two or four door variants for transportation of personnel or various work truck builds such as a flat deck or scissor lift.

STEV is quiet so a forward projected white noise pulse is used while driving to warn pedestrians. the cockpit is designed with touch screen interface capability with display units providing operating feedback in several ways. miller is respected industry wide as an innovative and resourceful designer and fabricator of cutting edge technologies and equipment. solutions developed by miller have positive and direct, real world, impacts for operators in the field. through the development of equipment such as STEV, miller is harnessing efficiencies to enhance the bottom line for operators, deliver environmentally friendly options for mining and tunnelling industries and maximize equipment value/investment for the end user.