The vehicle is being converted into a full-size experimental test rig, by radically modifying
the suspension systems to include active anti-roll bars and 'semi-active' shock absorbers. "These systems
will enable us to maximise roll-over safety, while simultaneously minimising road damage and improving driver
and cargo ride" said Cebon.
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The modified suspension unit showing
hydraulic actuators and anti-roll bar. |
The truck will eventually have a complex system of 20 actuators, 40 sensors and 5 computers, along with a
hydraulic power supply and electrical generator. The computers control the actuators, monitor the sensors and
communicate with each other via a digital data network. Safety is paramount, so sophisticated 'watchdog'
computers are used to monitor performance continuously and check that nothing goes wrong. Computer control
and fast reaction times mean that the tractor and trailer unit can be forced to roll in whatever direction
the control strategy requires, and the resultant effect can be monitored. The vehicle will be tested on the
DERA test track in Chertsey, with outriggers (like training wheels) to prevent roll over occurring during
trials.
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| CAD models of the modified suspension units. |
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