lectric an with a ifference
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?. is a Morris component rig a ratio of 6.2:1. The es are unmodified, being drums all-round.
riere are 18 batteries weigh s total of 702kg (15481b). are arranged as a group ,behind the seats (restrictthe load area somewhat) t the remaining three at the • of the vehicle under the let. A standard car battery tides power for lights, ?.rs etc and this is continu recharged through an :rter from the math eries.
hour recharge
he control unit is situated ve the motor under the net and it also includes a ving point for eaCternal 7ging. An on-board charger available as an option. rging will 'nor/nay take up 0 hours depending on depth discharge although rapid rging in three hours is able.
rom the start the vehicles e been designed with simpliin mind, the ability to be ntained by vehicle fitters ig an important factor. It ; partly for this reason, as 1 as cost, that an 'SCR type :ontrol unit is not used. The tact's on the AVS switch r can be removed for cleanor replacement in a few .utes and, because the tching takes place in the I windings of the motor, rent losses are relatively is has already been exined, the 'Hobbs converter is y efficient and as a further mple its mechanical effiicy is said to he about one cent better than a cornable manual gearbox in an engine application and 25 cent more efficient than a conventional torque converter and epicyclic transmission. Also, because of its relatively few parts the Hobbs transmission could be made much more cheaply than a conventional automatic transmission in similar quantities.
As far as the van is concerned there is no necessity to use a complete automatic transmission casing and in fact much of the box is redundant. When demand is sufficient a purpose-built box will be provided but until 'then it is more economical to use modified components.
The transmission (which has advantages for materials handling equipment too) is currently being looked at with interest in the United States and the Marina van will be going on demonstration there at the end of this month.