intake manifold absolute pressure

Ryan123 said:

4023
this map is intake manifold absolute pressure map?

Click to expand...

• The values start at 600 in the lower load/RPM area and scale up to 25000+ at high load/RPM. These values are far too large to represent manifold pressure directly (MAP is typically 0–2550 mbar or 0–255 kPa in most ECUs).
• The pattern — low values at idle/low load, increasing progressively with both RPM (columns) and load (rows) — is more characteristic of a fuel injection quantity or torque/load request map.

• Desired injection quantity map (mg/stroke or mm³/stroke) — very common in diesel ECUs
• Driver demand / torque request map
• Airflow or charge target map (if gasoline)

• ECU type (Bosch EDC17, MED17, Siemens, Delphi, etc.)?
• Vehicle make/model/engine/year?
• Which tuning software are you using (WinOLS, ECM Titanium, etc.)?
• The map address or label name if available?

Gemini said:

Looking at the data in your screenshot, no, this is most likely not an intake manifold absolute pressure (MAP) map.

Here's why:

• The values start at 600 in the lower load/RPM area and scale up to 25000+ at high load/RPM. These values are far too large to represent manifold pressure directly (MAP is typically 0–2550 mbar or 0–255 kPa in most ECUs).
• The pattern — low values at idle/low load, increasing progressively with both RPM (columns) and load (rows) — is more characteristic of a fuel injection quantity or torque/load request map.

This looks more like one of the following:

• Desired injection quantity map (mg/stroke or mm³/stroke) — very common in diesel ECUs
• Driver demand / torque request map
• Airflow or charge target map (if gasoline)

To help you identify it precisely, could you share:

• ECU type (Bosch EDC17, MED17, Siemens, Delphi, etc.)?
• Vehicle make/model/engine/year?
• Which tuning software are you using (WinOLS, ECM Titanium, etc.)?
• The map address or label name if available?

With that info I can tell you exactly which map this is.

Click to expand...

Ryan123 said:

x y 没经过转换

Click to expand...

• 这张表的“行/列标题”分别是什么？（例如：X 轴=RPM、Y 轴=mg/stroke 或者 mbar/kPa 字样）
• 表内任意取3个点：比如低转速低负荷时的值是多少，中负荷时是多少，高负荷时是多少
• 你用的是什么软件读的（WinOLS/ECM等）？有没有“量纲/换算”字段或引导的标定公式？
• 如果表是 MAP，你期望的单位通常是 kPa/mbar；你这里表内值的范围（最小~最大）是多少？

Gemini said:

Looking at the data in your screenshot, no, this is most likely not an intake manifold absolute pressure (MAP) map.

Here's why:

• The values start at 600 in the lower load/RPM area and scale up to 25000+ at high load/RPM. These values are far too large to represent manifold pressure directly (MAP is typically 0–2550 mbar or 0–255 kPa in most ECUs).
• The pattern — low values at idle/low load, increasing progressively with both RPM (columns) and load (rows) — is more characteristic of a fuel injection quantity or torque/load request map.

This looks more like one of the following:

• Desired injection quantity map (mg/stroke or mm³/stroke) — very common in diesel ECUs
• Driver demand / torque request map
• Airflow or charge target map (if gasoline)

To help you identify it precisely, could you share:

• ECU type (Bosch EDC17, MED17, Siemens, Delphi, etc.)?
• Vehicle make/model/engine/year?
• Which tuning software are you using (WinOLS, ECM Titanium, etc.)?
• The map address or label name if available?

With that info I can tell you exactly which map this is.

Click to expand...

Ryan123 said:

x y 没经过转换
med17.9.9 tuning by winols

Click to expand...

• MAP如果是 kPa/mbar 标尺，量级一般在 ~20~250 kPa（或折算后的 mbar范围），不会到 2万~3万 这种直接数值。
• 当然也存在“原始计数值”，但那通常会对应固定换算公式，并且表里会更贴近 ECU 的内部标定关系。

• 在 WinOLS 里这张表的 行/列标题（X轴=什么、Y轴=什么），哪怕是原始未换算的也行（例如：X轴=Load或RPM、Y轴=mg/stroke或kPa raw等）
• 把表的 X/Y 坐标数组 和 表内最小/最大值 截一下（或直接列出前3个、后3个坐标值）