Method of controlling braking of an multi-phase electrical motor

A method of braking in an electrically powered vehicle, said vehicle including a drive system which includes a multi-phase electric motor, said motor comprising at least one stator group;

• said stator group comprising a first stator arrangement including three coils in a first coil arrangement and a second stator arrangement including three coils in a second coil arrangement, said second coil arrangement being angularly offset from said first coil arrangement, and where,
• said first stator arrangement is connected to respective low side and/or high side circuitry, including low side switches and/or high side switches for each of the said coils respectively, adapted to selectively allow current to flow through said respective coils of said first stator arrangement from a DC power source, and
• where said second stator arrangement is connected to respective low side and/or high side circuitry, including a low side switches and/or high side switches for each of the said coils respectively, adapted to selectively allow current to flow through said respective coils of said second stator arrangement from a DC power source, said method comprising:
• for one or more of each group:
• for both of said second or first stator arrangements, i) setting any two of said switches in said low side circuitry to a closed state and the other switch in an open state, and setting all the switches in the high side to an open state;
• and/or
• ii) setting any two of said switches in said high side circuitry to a closed state and setting the other switch to an open state, and setting all the switches on the low side to an open state.