Uniform clamp actuated shift infinitely variable transmission system

A clutch assembly for an infinitely variable transmission system, the clutch assembly comprising:

• a clutch including,
• a post;
• a movable sheave member slidably mounted on the post;
• a fixed sheave member mounted in an axially fixed configuration on the post;
• a sensitive assembly in operational communication with the movable sheave member, the sensitive assembly configured to move the movable sheave member in relation to the fixed sheave member based on the sensitive assembly;
• and
• an actuator operationally coupled the movable sheave member to selectively move the movable sheave member independent of the sensitive assembly, the actuator including,
• an activation spider including activation rollers, the activation spider configured to move axially, and
• an activation cam having roller guide cutout sections, the activation rollers received within the roller guide cutout sections of the activation cam, the actuator operationally coupled to the activation cam to selectively rotate the activation cam to cause the activation spider to move the movable sheave member independent of the sensing assembly.

A vehicle having a uniform clamp actuated shift infinitely variable transmission (UCAS IVT) system, the vehicle comprising:

• a motor to generate engine torque and rotation;
• a drivetrain;
• the UCAS IVT system including,
• an endless loop member;
• a drive clutch including,
• a drive post operationally coupled to the motor,
• a movable drive sheave member slidably mounted on the drive post,
• a fixed drive sheave member mounted in an axially fixed configuration on the drive post, and
• a drive sensitive assembly in operational communication with the movable drive sheave member, the drive sensitive assembly configured to move the movable drive sheave member in relation to the fixed drive sheave member based at least in part on one of torque and RPM applied to the drive torque sensitive assembly;
• a driven clutch, the drive clutch and driven clutch configured to communicate torque and rotation between each other with the endless loop member, the driven clutch including,
• a driven post operationally coupled to the drivetrain,
• a movable driven sheave member slidably mounted on the driven post,
• a fixed driven sheave member mounted in an axially fixed configuration on the driven post, and
• a driven torque sensitive assembly in operational communication with the movable driven sheave member, the driven torque sensitive assembly configured to move the movable driven sheave member in relation to the fixed driven sheave member based at least in part on torque applied to the driven torque sensitive assembly, wherein the driven torque sensitive assembly further includes,
• a driven spider coupled to the driven post, rotation of the driven spider fixed to the rotation of the driven post, the driven spider including at least one driven spider arm,
• a driven cam roller rotatably coupled on each driven spider arm, and
• a driven cam coupled to the movable driven sheave member, the driven cam having at least one cutout portion forming driven cam profile surfaces, each driven cam roller positioned within a cutout portion of the at least one cutout portion, each driven cam roller configured to engage associated driven cam profile surfaces to communicate torque and rotation between the driven spider and driven cam;
• and
• at least one actuator operationally coupled to one of the drive clutch and driven clutch to selectively move one of the movable drive sheave member and the movable driven sheave member independent of the respective drive sensitive assembly and driven torque sensitive assembly to achieve at least one of uniform clamping of the endless loop member and to produce a ratio change across the UCAS IVT system.