Steering Bracket Sensor Mounting for Aerial Work Platform Safety
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Solution Overview
Problem
In vehicles with aerial work platforms, the steering angle displacement causes a deviation between the direction of the steering wheel and the vehicle body, making it difficult to detect road surface conditions such as unevenness and obstacles using sensors fixed to the vehicle body.
Innovation Solution
A safety device with a road surface condition detection system integrated into the steering bracket, which extends its detection region forward and rearward, allowing accurate detection of road conditions even with steering angle displacement, and includes a warning system to alert the operator of barriers or obstacles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the steering angle of the steering wheel is displaced to change the traveling direction, then the vehicle can navigate turns and obstacles, but the direction of the steering wheel and the vehicle body deviate from each other, making it difficult to detect road surface conditions using sensors fixed to the vehicle body
Solution Approach 1:
The sensor is mounted on the steering bracket, which dynamically rotates together with the steering wheel during steering operations. This dynamic mounting allows the sensor's detection direction to automatically follow the steering angle displacement, ensuring that the detection region always aligns with the actual traveling direction of the vehicle body, thereby maintaining accurate road surface condition detection even during turns
Solution Approach 2:
The steering bracket serves as an intermediary carrier that couples the sensor to the steering system. By mounting the sensor on the steering bracket rather than directly to the vehicle body, the sensor becomes indirectly connected to the steering motion through this intermediary component, allowing it to track steering angle changes and maintain accurate detection of road conditions in the actual traveling direction
Data Source
Figure 1(a)~1(b)
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AI summary
A safety device for a vehicle with an aerial work platform comprises a traveling body that includes a steering wheel and can travel forward and rearward, a lifting apparatus that is provided in the traveling body to be liftable and lowerable, a work platform that is movable by the lifting apparatus, a steering operation device that is provided in the work platform and is operated by an operator on the work platform, a steering actuator that performs a steering operation of the steering wheel in response to an operation of the steering operation device. The safety device comprises a steering bracket that rotatably supports the steering wheel and is steered together with the steering wheel in response to the operation of the steering actuator; and a road surface condition detection device that is provided in the steering bracket, has a detection region extending forward in a traveling direction of the steering vehicle, and detects a road surface condition in the detection region.