Xgauge for HSI

The "ECO Score" screen displays HSI in graphical form. We can use the Scangauge to display the numerical equivalent.

	Column 1
0	[TH]XGAUGE[/TH][TH]TXD[/TH][TH]RXF[/TH][TH]RXD[/TH][TH]MTH[/TH][TH]NAM[/TH][TH]Notes[/TH]
1	[TR][TD]HV System Indicator[/TD][TD]07C0212B[/TD][TD]02C80461052B[/TD][TD]2E0A[/TD][TD]000100010000[/TD][TD1]HSI[/TD1][TD]%[/TD][/TR]

Area 1 - Charge area

• Range -512% to 0%
• My current firmware 3.17 can't be configured to display signed number, so I need to manually subtract 1024. e.g. if it displayed 1100, it should be -76%.

Area 2 - Hybrid ECO area

• Range 0% to 50%

Area 3 - ECO area

• Range 0% to 100%

Area 4 - Power area

• Range 100% to 511%

Vincent

 

There are many PIDs that are common to Liftback, v, PiP & C, it should work as well.

Vincent

 

Nope, HSI displays the total of the HV battery and engine output as the hybrid system output and regenerative charging. It is displaying power rather than energy. During regen, the engine is either off or idle depending on speed so the -76% is showing how much power is charging the HV battery. You can multiply the voltage and current to find out the relationship between the % and kW.

Vincent

 

Hi Eddie,

It may be possible but I have not figured out how to create a formula for a 10-bit Signed Number in Torque.

Vincent

 

Hi Eddie,

I do not use Torque so could you or someone try this?

	Column 1
0	[TH]Name[/TH][TH]ShortName[/TH][TH]ModeAndPID[/TH][TH]Equation[/TH][TH]Min Value[/TH][TH]Max Value[/TH][TH]Units[/TH][TH]Header[/TH]
1	[TR][TD]HV System Indicator[/TD][TD1]H S I[/TD1][TD1]212B[/TD1][TD1]{A:0} * 256 + B - {A:1} * 512[/TD1][TD1]-512[/TD1][TD1]511[/TD1][TD1]%[/TD1][TD1]7C0[/TD1][/TR]

Vincent

 

Hi Eddie,

Thanks for testing it! SGII use simple arithmetic so it is not as versatile as Torque which can use complex formula and multiple PIDs.

Hi Dwight,

7F response with subcode 12 is to indicate the ECU does not support the arguments of the requested mode or the format of the argument bytes do not match the prescribed format for the specified mode.

I've compared the RM of both ZVW30 & NHP10, it seems HSI is a new PID in NHP10. The ZVW30 only has it in the Active test (Pg. 6577) but that is only for testing the indicator light.

Vincent

 

Hi priusCpilot & Dwight,

I found an alternative way to read HSI using passive mode or non-diagnostic mode:

	Column 1
0	[TH]XGAUGE[/TH][TH]TXD[/TH][TH]RXF[/TH][TH]RXD[/TH][TH]MTH[/TH][TH]NAM[/TH][TH]Notes[/TH]
1	[TR][TD]HV System Indicator[/TD][TD]024F[/TD][TD]01020247[/TD][TD]160A[/TD][TD]000100010000[/TD][TD1]hsi[/TD1][TD]%[/TD][/TR]

I believe it should work for ZVW30 and others, even though it is not supported in diagnostic mode.

Vincent