Hybrid Pump for Cabin Tilt with Manual and Electric Modes
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Solution Overview
Problem
Existing cabin tilt systems for vehicle driver's cabins are either user-unfriendly due to manual operation requirements, leading to driver fatigue, or are non-operational during power interruptions in electrically driven systems.
Innovation Solution
A hybrid pump system that combines manual and electrical operation, featuring a pump body with a piston and shaft holder for manual operation and a motor for electrical operation, allowing for efficient and adaptable cabin tilting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a manual actuating pump is used to deliver pressurized oil for cabin tilting, then the system can operate without electrical power, but the driver experiences fatigue and tiredness due to the high load (30kg) and large number of strokes (110-300) required to tilt the cabin
Solution Approach 1:
The patent combines manual and electrical operation modes into a single hybrid pump system. The pump body can be operated either manually by the driver or automatically by an electric motor, merging the advantages of both systems into one unified mechanism that eliminates the trade-off between reliability and ease of operation.
Solution Approach 2:
The hybrid pump is designed with multi-functionality, serving both as a manual pump and an electrically-driven pump. This universal design allows the same pump mechanism to fulfill different operational needs - manual operation for reliability during power loss and electrical operation for ease of use during normal conditions.
2Ease of operation
If an electrically driven cabin tilt arrangement is used to reduce manual effort, then ease of operation is improved, but the system becomes non-operational during power interruptions
Solution Approach 1:
The hybrid pump merges electrical and manual drive mechanisms into a single pump body, allowing the system to switch between electrical operation for ease of use and manual operation for reliability during power interruptions.
Solution Approach 2:
The system prepares for power interruption by maintaining the capability for manual operation within the hybrid pump. This prior cushioning ensures that even if electrical power fails, the cabin tilt function remains operational through the manual mechanism already integrated into the system.
3Reliability
If a hybrid pump system is implemented to provide both manual and electrical operation, then reliability and ease of operation are both improved, but the device complexity increases
Solution Approach 1:
The patent merges manual and electrical drive mechanisms into a single integrated pump body rather than using separate systems. This consolidation reduces overall device complexity compared to having two independent pump systems while still providing both operational modes.
Solution Approach 2:
The hybrid pump achieves multi-functionality within a single device structure, allowing one pump mechanism to serve both manual and electrical operation modes. This universal design avoids the need for separate pump systems, thereby limiting the increase in device complexity.
4Adaptability or versatility
If the shaft holder is made pivotally connected to enable 360-degree swiveling, then adaptability for manual operation from any direction is improved, but the device complexity increases
Solution Approach 1:
The shaft holder is designed with pivotal connections that enable dynamic adjustment and 360-degree swiveling, allowing the manual operation direction to adapt to different user positions and approaches while maintaining a relatively simple mechanical connection structure.
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 hybrid pump system provides a more efficient, user-friendly, and reliable cabin tilt mechanism that reduces maintenance needs and ensures operation regardless of power availability.
Implementation Method 1
a motor for electrical operation means for the controlled tilting of the driver's cabin... to incorporate the rotary motion to an eccentric cam to provide to and pro motion to a piston
Implementation Method 2
a piston that is connected to a shaft holder to incorporate reciprocating motion... the common passage is configured for the passage of the pressurized oil pumped
Data Source
Figure 1~2A
Figure 2B~2C
Figure 3
AI summary
Hybrid pump (HP) comprising a pump body (101) including a first cylindrical portion (101a), a second cylindrical portion (101d), and a common passage (101f). An oil reservoir (103) is arranged at one of the sides of the pump body (101) to hold the oil. A motor (105) is mounted on the other side of pump body (101) to incorporate the rotary motion to an eccentric cam (155) for pumping the oil during the electrical operation of the pump. A piston (109) is connected to a shaft holder (139) to incorporate reciprocating motion for the pumping of the oil during manual operation. The first cylindrical portion (101a) is configured to accommodate the piston (109). The common passage (101f) is configured for the passage of the pressurized oil pumped either by a manual or electrical operation of the hybrid pump (HP) into a chamber (101h).