Double Clutch Assembly Actuator Assistance via Elastic Force
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Solution Overview
Problem
Existing double clutch assemblies are heavy, occupy large installation space, have high manufacturing costs, and generate significant heat due to the high capacity of their actuators.
Innovation Solution
A double clutch assembly with a device that assists the actuators by applying an elastic force using an elastic member, such as a torsion spring or coil spring, to reduce the capacity and size of the actuators, thereby reducing weight and heat generation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If high-capacity actuators are installed to stably maintain clutch operability, then reliability is improved, but weight increases
Solution Approach 1:
A lever arm is introduced as an intermediary mechanical element between the actuator and the clutch pressure plate. The lever arm amplifies the force output from a small-capacity actuator, enabling it to achieve the necessary clamping force for reliable clutch operation without requiring a heavy high-capacity actuator.
Solution Approach 2:
The lever arm is pre-configured with specific geometric dimensions (lever arm length, connection point positions) to provide mechanical advantage before the actuator operates. This preliminary mechanical configuration allows the actuator to generate sufficient clamping force through force amplification rather than requiring high intrinsic actuator capacity.
2Reliability
If high-capacity actuators are installed to stably maintain clutch operability, then reliability is improved, but installation space increases
Solution Approach 1:
The lever arm serves as a mechanical intermediary that enables compact actuator design. By positioning the lever arm strategically between the actuator and clutch components, the system achieves reliable clutch operation with a small-capacity actuator, thereby reducing the overall installation space required in the transmission housing.
3Reliability
If high-capacity actuators are installed to stably maintain clutch operability, then reliability is improved, but manufacturing cost increases
Solution Approach 1:
The lever arm mechanism allows the use of small-capacity, lower-cost actuators while maintaining reliable clutch operation. The lever arm itself is a simple mechanical component that provides force amplification, eliminating the need to purchase and install expensive high-capacity actuators, thereby reducing overall manufacturing costs.
4Reliability
If high-capacity actuators are installed to stably maintain clutch operability, then reliability is improved, but heat radiation increases
Solution Approach 1:
The lever arm acts as a mechanical force amplifier that reduces the power consumption of the actuator. By providing mechanical advantage through the lever arm configuration, the system achieves reliable clutch engagement and disengagement with minimal actuator power, thereby significantly reducing heat generation and radiation from the actuator.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution effectively miniaturizes the actuators, reduces manufacturing costs, and decreases heat radiation by applying an assistance force to the actuators, allowing for a more compact and efficient double clutch assembly.
Implementation Method 1
an elastic member configured to apply an elastic force
Implementation Method 2
The elastic member may be configured of a torsion spring interposed between the first pinion and the second pinion to apply the elastic force to the first pinion and the second pinion in a rotation direction
Data Source
AI summary
The present disclosure provides a double clutch assembly and a device for assisting an actuator of the double clutch. The device applies an assistance force to the actuator upon an operation of the actuator. In particular, the double clutch assembly includes first and second actuators which engage or disengage first and second clutches, respectively. The device includes: an elastic member to apply an elastic force; a first transfer portion to transfer the elastic force of the elastic member to the first actuator; and a second transfer portion to transfer the elastic force of the elastic member to the second actuator.