A vehicle control system is provided, in which an engine ECU starts fuel cut control when deceleration is requested, and an air conditioner ECU operates a compressor to accumulate the cold during operation when the fuel cut control is performed by an engine controller, and deactivates the compressor in a case where an evaporator temperature matches or falls below a predetermined value of a compressor deactivation permissible temperature when a condition of terminating the fuel cut control is satisfied. The engine ECU extends the fuel cut control in a case where the compressor is deactivated when the condition of terminating the fuel cut control is satisfied. The air conditioner ECU includes a compressor deactivation permissible temperature changing unit configured to raise the compressor deactivation permissible temperature from the predetermined value when an estimated air conditioning load is low.

A low-voltage system of a transport refrigeration unit (TRU) includes a low-voltage direct current (LVDC) source; and a distribution bus coupled to the LVDC, the distribution bus is coupled to a compressor, at least one condenser, and at least one evaporator.

Disclosed may be a method of controlling a valet mode of a vehicle, the method including determining whether the vehicle may be in valet mode, when the vehicle may be determined to be in the valet mode, setting the vehicle to a plurality of parking state modes based on the traveling state of the vehicle being parked, and calculating an air conditioning limit power capable of limiting the air conditioning of the vehicle based on each of the valet mode and the plurality of set parking state modes.

A thermal management system includes a refrigerant loop, a motor coolant loop, and a battery coolant loop. The refrigerant loop includes a first refrigerant main-line, a second refrigerant main-line, a first refrigerant branch, and a second refrigerant branch. The first refrigerant main-line includes a compressor, the second refrigerant main-line includes a cabin condenser, the first refrigerant branch includes a cabin evaporator, the second refrigerant branch includes a radiator. The first refrigerant main-line and the second refrigerant main-line selectively communicate with one of the first and second refrigerant branches. The battery coolant loop includes a coolant main-line, a first coolant branch connected to the cabin evaporator, a second coolant branch connected to the cabin condenser, and a third coolant branch. The coolant main-line selectively communicates with at least one of the first to third coolant branches. The battery coolant loop connects to the motor coolant loop in series or in parallel.

A vehicular thermal management system includes: an indoor-air-conditioner disposed in a first vehicle body having a passenger space and including a compressor, a first condenser, an evaporator, a blower, and a refrigerant line; and a component-air-conditioner disposed in a second vehicle body combinable with the first vehicle body and including an electrical component line for cooling an electrical component of the vehicle and a first battery line for cooling a high-voltage battery including a chiller which extends toward the first vehicle body to be disposed behind the evaporator when the first vehicle body is combined with the second vehicle body.

In a vehicle air conditioner, a controller is configured (i) to set a target cooling temperature of air cooled by a cooling heat exchanger, (ii) to control an operation of a compressor based on a cooling temperature and the target cooling temperature of the cooling heat exchanger, and (iii) to determine a traveling state of the vehicle. The controller is configured to set a normal target temperature as the target cooling temperature when the vehicle is traveling with a normal condition, and to set a modified target temperature higher than the normal target temperature as the target cooling temperature when the vehicle starts decelerating. In addition, the controller is configured to cause the compressor to stop operating when the vehicle starts decelerating, and to cause the compressor to restart operating when the cooling temperature detected by a temperature sensor is equal to or higher than the modified target temperature.

Systems and methods are provided for controlling a hybrid powertrain of a hybrid vehicle, and may include: determining a value of a drive request for a combustion engine of the hybrid vehicle; determining electrical loading on batteries of the hybrid vehicle; adjusting operation of an accessory of the hybrid vehicle to reduce the electrical load of that accessory on the batteries of the hybrid vehicle when the drive request value is above a determined drive request threshold amount and the electrical loading on batteries of the hybrid vehicle is above a power loading threshold; and directing at least some of the power saved by adjusting operation of the accessory from the batteries of the hybrid vehicle to a drive motor of the hybrid vehicle to provide motive force for the vehicle.

A vehicular thermal management system includes: an indoor-air-conditioner disposed in a first vehicle body having a passenger space and including a compressor, a first condenser, an evaporator, a blower, and a refrigerant line; and a component-air-conditioner disposed in a second vehicle body combinable with the first vehicle body and including an electrical component line for cooling an electrical component of the vehicle and a first battery line for cooling a high-voltage battery including a chiller which extends toward the first vehicle body to be disposed behind the evaporator when the first vehicle body is combined with the second vehicle body.

An air conditioning system for use with a vehicle is configured to provide conditioned air. The air conditioning system includes a controller configured to vary a flow of the conditioned air and the controller is arranged to be cooled by the conditioned air.

An intake system of an engine mounted on a vehicle where a cabin is air-conditioned by an air conditioner, is provided. A heat exchanger of an evaporator of the air conditioner is divided into a first heat exchanger and a second heat exchanger that are mutually independent, and an air passage includes a first division passage and a second division passage. The intake system cools intake air utilizing a part of the air conditioner, and includes a connecting passage that guides first air cooled by passing through the first heat exchanger, a passage switch, and a controller. When the controller determines that a cooling demand for the intake air exists, it controls the first air to flow into an intake passage through the connecting passage, and when the controller determines that there is no cooling demand, it controls the first air to flow into the first division passage.