Lift-tilt device sensor standby control for waste containers
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Solution Overview
Problem
Current lifting and tipping devices for waste collection vehicles experience inefficiencies due to constant energy consumption and time delays in starting the emptying process, as they are often operated with constant hydraulic pumps or load-sensing systems that require unnecessary energy usage and prolonged startup times.
Innovation Solution
Implementing a sensor-based system that monitors the space in front of the container holder to initiate a standby state for the hydraulic pump only when a waste container is detected, allowing for immediate operation upon container availability and adjusting power requirements based on container type and weight, thereby reducing energy consumption and shortening cycle times.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If a hydraulic pump is operated with constant flow rate to ensure immediate operation, then response time is improved, but energy consumption increases
Solution Approach 1:
The sensor detects a waste container approaching the container holder in advance, triggering the hydraulic pump to be switched on before the container is actually positioned. This preliminary action ensures the pump is already operational when needed, achieving immediate response without requiring constant pump operation.
Solution Approach 2:
The system uses sensor detection to automatically control the pump's operation state. The pump serves itself by being activated only when the sensor detects a container, eliminating the need for constant manual or automated monitoring and reducing unnecessary energy consumption during idle periods.
2Use of energy by moving object
If the hydraulic pump is switched on only when needed to save energy, then energy consumption is reduced, but response time increases
Solution Approach 1:
The sensor detects the waste container at a distance before it reaches the container holder, providing advance warning time. This allows the control system to switch on the hydraulic pump in advance, so that by the time the container is positioned, the pump is already ready to operate immediately, eliminating startup delays.
3Reliability
If constant pump operation is used to ensure operational readiness, then reliability is improved, but energy efficiency deteriorates
Solution Approach 1:
The sensor continuously monitors the space in front of the container holder and provides feedback to the control system. Based on this real-time information, the control system adjusts the pump's operation state dynamically, ensuring the pump is operational when a container is detected while remaining off during idle periods, thus maintaining reliability without constant operation.
Solution Approach 2:
The system transitions from static constant pump operation to dynamic operation where the pump's state changes based on real-time sensor input. The pump switches between off and on states according to the presence of a waste container, optimizing both reliability and energy efficiency through adaptive behavior.
Data Source
AI summary
The invention relates to a method for operating a lifting and tipping device (1) for a waste collection vehicle comprising the following steps: • Monitoring a space (5) in front of the container receiving (3) of a lifting and tipping device (1) by at least one sensor device (6, 7), • Detecting a waste container (4) in the space (5) in front of the container receiving (3), • Establishing a readiness state of at least one hydraulic pump for operating the lifting and tipping device (1) before the waste container (4) is provided in front of the container receiving (3).The invention further relates to a lifting and tipping device (1) for a waste collection vehicle, comprising a sensor device (6, 7) that monitors a space (5) located in front of a container receptacle (3) of the lifting and tipping device (1), and a control unit connected to the sensor device (6, 7) that is configured to bring at least one hydraulic pump for operating the lifting and tipping device (1) into a ready state as soon as the sensor device (6, 7) detects a waste container (4) in the monitored space (5), so that the ready state is established before the waste container (4) is positioned in front of the container receptacle (3). By synchronizing the start-up of the hydraulic system of the lifting and tipping device (1) with the positioning of the waste container (4) in front of the container receptacle (3), the hydraulic pump is used only as needed, making the overall system more economical and efficient in operation.