Hybrid power transmission with power take-off apparatus

An electro-mechanical hybrid drive and accessory drive comprising:

• an electrical power and storage source;
• a first motor/generator;
• a second motor/generator;
• control means for selectively connecting said power and storage source with said first and second motor/generators for controlling their respective operation thereof;
• an internal combustion engine prime mover having an idle speed;
• a planetary gear arrangement having a first member drivingly connected with said first motor/generator, a second member drivingly connected with said second motor/generator, and a third member drivingly connected with a plurality of accessory drive shafts, one of which is drivingly connected with a hydraulic power source;
• a hydraulically operated clutch which is selectively engageable to connect said prime mover with said third planetary member;
• and
• said first and second motor/generators being operable through said planetary gear arrangement to operate said hydraulic power source and to control the speeds of the first and second members to rotate said third member of said planetary gear arrangement at a speed proportional to said idle speed when said clutch is disengaged to permit selective engagement of said clutch at a speed synchronous with said idle speed.