Evaluation system for the condition evaluation of a vehicle passenger, the system comprising: - a parameter evaluation device being configured to evaluate a plurality of parameters of a set of vehicle interior and vehicle passenger parameters, the set of parameters including: - a vehicle cabin air temperature parameter (T cabin,air), - a vehicle cabin surface temperature parameter (T cabin,rad), - a passenger thermal body state parameter, - a passenger metabolic rate parameter, - a passenger clothing level parameter, - a passenger respiratory rate parameter, and - a passenger mood state parameter; and - a condition value evaluation device being configured to evaluate a passenger condition value based on the parameters evaluated by the parameter evaluation unit; - wherein the condition value evaluation device is configured to apply a weighting factor for a parameter evaluated by the parameter evaluation device; the weighting factor being within one of the ranges of: − 10 < a < 10, − 10 < b < 10, 0 < c < 8, 0 < d < 8, 0 < e < 5, − 1 < f < 0, and 0.2 < g < 3; where: a = vehicle cabin air temperature parameter weighting factor, b = vehicle cabin surface temperature parameter weighting factor, c = passenger thermal body state parameter weighting factor, d = passenger metabolic rate parameter weighting factor, e = passenger clothing level parameter weighting factor, f = passenger respiratory rate parameter weighting factor, and g = passenger mood state parameter weighting factor characterized in that the condition value evaluation device is configured to evaluate a passenger condition value based on the function: CV = a ⋅ T cabin, air − T cabin, air, ref + b ⋅ T cabin, rad − T cabin, rad, ref + c ⋅ TBS + d ⋅ MR − MR ref + e ⋅ CL − CL ref + f ⋅ RR − RR ref + g ⋅ MS where: CV = passenger condition value, T cabin,air,ref = reference vehicle cabin air temperature parameter, T cabin,rad,ref = reference vehicle cabin surface temperature parameter, MR ref = passenger metabolic rate reference value, CL ref = passenger clothing level reference value, RR ref = passenger respiratory rate reference value. - a parameter evaluation device being configured to evaluate a plurality of parameters of a set of vehicle interior and vehicle passenger parameters, the set of parameters including: - a vehicle cabin air temperature parameter (T cabin,air), - a vehicle cabin surface temperature parameter (T cabin,rad), - a passenger thermal body state parameter, - a passenger metabolic rate parameter, - a passenger clothing level parameter, - a passenger respiratory rate parameter, and - a passenger mood state parameter; and - a vehicle cabin air temperature parameter (T cabin,air), - a vehicle cabin surface temperature parameter (T cabin,rad), - a passenger thermal body state parameter, - a passenger metabolic rate parameter, - a passenger clothing level parameter, - a passenger respiratory rate parameter, and - a passenger mood state parameter; and - a condition value evaluation device being configured to evaluate a passenger condition value based on the parameters evaluated by the parameter evaluation unit; - wherein the condition value evaluation device is configured to apply a weighting factor for a parameter evaluated by the parameter evaluation device; the weighting factor being within one of the ranges of: − 10 < a < 10, − 10 < b < 10, 0 < c < 8, 0 < d < 8, 0 < e < 5, − 1 < f < 0, and 0.2 < g < 3; where: a = vehicle cabin air temperature parameter weighting factor, b = vehicle cabin surface temperature parameter weighting factor, c = passenger thermal body state parameter weighting factor, d = passenger metabolic rate parameter weighting factor, e = passenger clothing level parameter weighting factor, f = passenger respiratory rate parameter weighting factor, and g = passenger mood state parameter weighting factor characterized in that the condition value evaluation device is configured to evaluate a passenger condition value based on the function: CV = a ⋅ T cabin, air − T cabin, air, ref + b ⋅ T cabin, rad − T cabin, rad, ref + c ⋅ TBS + d ⋅ MR − MR ref + e ⋅ CL − CL ref + f ⋅ RR − RR ref + g ⋅ MS a = vehicle cabin air temperature parameter weighting factor, b = vehicle cabin surface temperature parameter weighting factor, c = passenger thermal body state parameter weighting factor, d = passenger metabolic rate parameter weighting factor, e = passenger clothing level parameter weighting factor, f = passenger respiratory rate parameter weighting factor, and g = passenger mood state parameter weighting factor CV = passenger condition value, T cabin,air,ref = reference vehicle cabin air temperature parameter, T cabin,rad,ref = reference vehicle cabin surface temperature parameter, MR ref = passenger metabolic rate reference value, CL ref = passenger clothing level reference value, RR ref = passenger respiratory rate reference value.