vw/eudataact: fall back to battery care mode field for target SoC (#32242)

vehicle/vw/eudataact/eudataact_test.go

@@ -237,6 +237,17 @@ func TestSocBatteryStateReportOnlyFallbackField(t *testing.T) {
 	assert.Equal(t, 40.0, soc)
 }
 
+// TestGetLimitSocBcamThreshold reproduces issue #32241: the Audi Q4 e-tron
+// reports its battery care mode SoC limit only under the battery care mode
+// field, not under the generic target soc field.
+func TestGetLimitSocBcamThreshold(t *testing.T) {
+	data := []point{{Name: FieldChargeBcamThreshold, Value: "80"}}
+
+	limit, err := testProvider(data).GetLimitSoc()
+	require.NoError(t, err)
+	assert.Equal(t, int64(80), limit)
+}
+
 // TestPoints guards that a data point with a generic field name ("value") is
 // stored once yet found by both its unique key and its name.
 func TestPoints(t *testing.T) {

vehicle/vw/eudataact/provider.go

@@ -188,7 +188,7 @@ func (v *Provider) GetLimitSoc() (int64, error) {
 		return 0, err
 	}
 
-	if p := lookup(data, FieldTargetSoc); p != nil {
+	if p := lookup(data, FieldTargetSoc, FieldChargeBcamThreshold); p != nil {
 		f, err := strconv.ParseFloat(p.Value, 64)
 		return int64(f), err
 	}

vehicle/vw/eudataact/types.go

@@ -130,7 +130,8 @@ const (
 	FieldHvBatteryLevelValue = "battery_level_HV.value"
 
 	// target soc
-	FieldTargetSoc = "settings.target_soc"
+	FieldTargetSoc           = "settings.target_soc"
+	FieldChargeBcamThreshold = "battery_care_mode.charge_bcam_threshold" // Audi Q4 e-tron battery care mode target soc
 
 	// range
 	FieldRangeCombined       = "cruising_range_combined"