电池性能分析

/ ****************************************************************************************** * * @file custom_socf_battery_profile.h * * @brief a battery profile data for State Of Charge * * Copyright (C) 2016 Dialog Semiconductor. * This computer program includes Confidential, Proprietary Information * of Dialog Semiconductor. All Rights Reserved. * **************************************************************************************** */ #ifndef CUSTOM_SOCF_BATTERY_PROFILE_H_ #define CUSTOM_SOCF_BATTERY_PROFILE_H_ #define VOL2SOC_LUT_SIZE 11 /* Battery profile data for 110mA battery */ #define SOCF_BATT_LOW_CURRENT 2000 //2mA load #define SOCF_BATT_HIGH_CURRENT 110000 //110mA load #define SOCF_BATTERY_CAPACITANCE 110 //Battery capacity (110mAh) #define SOCF_CHARGING_CURRENT 90 static const int16_t vol_dis_low_0[VOL2SOC_LUT_SIZE] = { 3450, 3510, 3561, 3591, 3634, 3681, 3743, 3833, 3934, 4053, 4170 }; static const int16_t vol_dis_high_0[VOL2SOC_LUT_SIZE] = { 2900, 3193, 3291, 3346, 3392, 3443, 3509, 3595, 3694, 3802, 4021 }; static const int16_t vol_chg_0_0 = 3447; //90mA charging #endif /* CUSTOM_SOCF_BATTERY_PROFILE_H_ */

我添加了对SoCF_Get_avg_current（Active_count，Active_Period）的调用，似乎报告了正确的值。如果我从socf_get_avg_current（）中占据返回值并将其划分为0.277，我应该在UA中获得结果，这是正确的吗？

我正在使用pxp_reporter演示并使用以下修改：
_ 32MHz水晶而不是16MHz

_ updated the custom_socf_battery_profile.h with the code attached above.

I figured out that this
#define socf_batt_capacitance_adj（1）

在检测到充电结束后将将容量设置为1000。

报告的SOCF_SOC似乎仍然消失了很多。在使用44mAh（60％）后的特定情况下，SOCF_SOC仍然报告了90％的电池电量。

1）将Custom_socf_battery_profile.h恢复为默认SDK

2）#define debug_soc

3) pm_set_sleep_mode(pm_mode_active)

in pxp_reporter and build debug option. Flashed the custom board and watched the terminal output.

The first read of the battery seems to report approximately correct SOC and the voltage reporting is accurate. However, as time go by, with a ~1.5mA constant drain on the battery (from running pxp_reporter, no additional load placed onto device), the SOC level goes up as voltage goes down. Log below:

[ 1 sec] DLG_SWFG SOC= 904 VOL=4104 ... [ 1000 sec] DLG_SWFG SOC= 908 VOL=4075

这是一些发现enabling #debug_soc:

调试计数平均值是SOCF_GET_SOC_ACTION（VOID）期间使用的报告active_count的平均值。

调试当前平均值是从socf_get_soc_active（void）中的Active_count中的1000个SOCF_GET_AVG_CURREND。

Joulescope是measuring instrument's average current during that time period.

三角洲是SoC和JoulesCope报告的价值的差异。

Notice the Delta is not linear, it increases as the current increases.

I believe it is obvious the Coulomb count is inaccurate.

Please setup a call with me to discuss this. It is urgent and it's affecting our development time. In particular I need to know where your formula are coming from and how we can fix these to get the correct results.

How is this number determined?

#define socf_max_coulomb_count_per_ma_sec 73584ll.

Why are these two scenario needed?

if (count > 0) { offset_current = 500 - (250 * avg_current) / 5000; } else { offset_current = SOCF_DEFAULT_OFFSET_CURRENT - (avg_current * 50) / 1500; }