Drive and control system for an electrically-powered lawn mower

An electrically-powered lawn mower comprising:

• a vehicle frame;
• a battery supported by the vehicle frame;
• a first driven wheel connected to a first side of the vehicle frame;
• a first electric drive connected to the first driven wheel, the first electric drive comprising:
• a first electric drive motor;
• a first motor shaft passing through the center of the first electric drive motor on a first axis;
• a first gear centered on the first axis through which the first motor shaft passes;
• a first axle shaft extending along a second axis parallel to but offset from the first axis, the first axle shaft connected to the first driven wheel such that the first axle shaft rotates the first driven wheel;
• and
• a second gear centered on the second axis through which the first axle shaft passes;
• wherein rotation of the first gear at a first rotational speed causes the second gear to rotate at a second rotational speed that is less than the first rotational speed;
• a second driven wheel connected to a second side of the vehicle frame opposite the first side;
• a second electric drive connected to the second driven wheel, the second electric drive comprising:
• a second electric drive motor;
• a second motor shaft passing through the center of the second electric drive motor on a third axis;
• a third gear centered on the third axis through which the second motor shaft passes;
• a second axle shaft extending along a fourth axis parallel to but offset from the third axis, the second axle shaft connected to the second driven wheel such that the second axle shaft rotates the second driven wheel;
• and
• a fourth gear centered on the fourth axis through which the second axle shaft passes;
• wherein rotation of the third gear at a third rotational speed causes the fourth gear to rotate at a fourth rotational speed that is less than the third rotational speed;
• and
• a control system comprising:
• a first control lever in electrical connection with the first electric drive for adjusting the first rotational speed;
• and
• a second control lever in electrical connection with the second electric drive for adjusting the third rotational speed.