Motor Driver Control Device Initial Phase Advancement
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional motor driver control devices experience delayed starting times due to pulse output waiting times, which becomes a problem in high-speed applications, and previous solutions have increased costs through hardware or software modifications.
Innovation Solution
A motor driver control device that includes a program memory with initial phase information for the position command pulse, allowing the position-command-pulse generation unit to advance the initial phase by up to 180°, reducing the starting time without altering the hardware or software architecture.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the position command pulse is generated with the same signal level as the initial state in the first half of each cycle, then the motor driver can reliably detect the pulse edges, but the starting time of positioning control is delayed by the pulse output waiting time
Solution Approach 1:
The patent applies preliminary action by presetting initial phase information in the program memory that specifies an arbitrary phase (0° to 180°) for the position command pulse. This allows the position-command-pulse generation unit to advance the initial phase of the output pulse, so that the motor driver can start control earlier without waiting for the conventional first-half-cycle signal level change. The starting command trigger is processed immediately to generate the positioning pattern and advance the phase, eliminating the pulse output waiting time while maintaining reliable edge detection.
2Loss of time
If hardware or software modifications are made to speed up motor control starting, then the starting time can be reduced, but the cost increases
Solution Approach 1:
The patent applies parameter changes by modifying the phase parameter of the position command pulse through initial phase information stored in the program memory. Instead of changing the hardware architecture or adding complex software modifications, the solution changes the phase parameter (from fixed 0° to arbitrary 0°-180°) that the position-command-pulse generation unit uses when generating pulses. This simple parameter change allows the system to advance the initial phase and reduce starting time while maintaining the existing hardware and software architecture.
3Productivity
If the pulse output waiting time is eliminated, then the takt time in production processes can be reduced, but the signal level timing in the position command pulse must be adjusted
Solution Approach 1:
The patent applies preliminary action by presetting the initial phase information in the program memory before execution. This pre-configured phase information allows the position-command-pulse generation unit to immediately generate advanced-phase pulses when triggered by the starting command, eliminating the need for pulse output waiting time and thereby reducing takt time in production processes.
Solution Approach 2:
The patent applies parameter changes by allowing the initial phase of the position command pulse to be adjusted from the conventional fixed value to an arbitrary value (0° to 180°) specified by the initial phase information. This parameter change enables the system to optimize pulse timing for high-speed starting applications without increasing device complexity.
Data Source
Figure 1
Figure 2
Figure 3
AI summary
A position-command-pulse generation unit generates a position command pulse to be output to a motor driver by advancing an initial phase thereof by a phase indicated by initial phase information preset in a device. The initial phase information indicates an arbitrary phase in a period of a half cycle of a first pulse of the position command pulse.