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功能 #2559
已关闭功能 #2519: Ford_SYSR: System Requirement
Ford_SYSR：FS_REQ0039_V2 Fading Requirements
开始日期:
2024-11-01
计划完成日期:
2024-11-07
% 完成:
100%
预期时间:
(合计: 0.00 小时)
描述
| Channel 1 | Channel 2 | Channel 3 | Channel 4 | LSD1&2 | |
| Fade-in capability from 0% onwards | Yes | Yes | Yes | Yes | Yes |
| Min duty cycle with stable current | 5% | 5% | 5% | 5% | 5% |
| PWM allowed for performance control | Yes | Yes | Yes | Yes | Yes |
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Table 14: Current control performance
Note that fading shall be achieved by a PWM which shall provide a smooth and a non-linear cubic ramp. The resolution shall be 10-bit maximum, meaning the minimum duty cycle supported shall be about 500µs. Due to the different requirements regarding SBL rate of change the SBL is exempt from the cubic ramp requirement and smooth fading requirement.
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