Hybrid powertrain with input brake

A hybrid powertrain comprising:

• an engine with a crankshaft;
• a hybrid transmission having:
• an input member operatively connectable to the crankshaft to be rotatable by the crankshaft;
• at least one motor/generator;
• a gearing arrangement;
• an output member operatively connectable to both the input member and said at least one motor/generator via the gearing arrangement;
• an input brake comprising:
• a first and a second brake shoe;
• a selectively energizable solenoid;
• a mechanical biasing mechanism;
• wherein the solenoid is operatively connected to the brake shoes via the mechanical biasing mechanism so that both brake shoes are operatively connected with the input member when the solenoid is energized;
• and
• wherein the mechanical biasing mechanism and the brake shoes are configured so that when the solenoid is deenergized, the first brake shoe remains operatively connected with and resists rotation of the input member when clockwise torque is applied to the input member, and the second brake shoe remains operatively connected with and resists rotation of the input member when counterclockwise torque is applied to the input member.