Abstract: A heat exchanger for battery cooling is provided to improve an efficiency of cooling of the current heat exchangers. The heat exchanger for battery cooling comprises an upper housing with a fluid inlet and a fluid outlet, a lower housing capable of hermetically connecting with the upper housing to form a chamber for accommodating fluid. The fluid flows into the chamber through the fluid inlet and then exits through the fluid outlet. The fluid chamber is provided with at least one S-shaped fluid directing element with several through holes. With the S-shape directing elements within the fluid chamber and the through holes formed on the directing elements, fluid can flow in an injecting manner within the chamber to realize effective cooling of the upper housing.

Abstract: The present invention proposes power battery pre-charge system and device for an electric vehicle, said power battery pre-charge device comprises a pre-charge circuit formed by a current source circuit and a bus capacitor, wherein said current source circuit provides a current for charging the bus capacitor, wherein said current source circuit includes a triode, a first resistor, a second resistor and at least two high-voltage MOSFET transistors. The power battery pre-charge system and device for an electric vehicle as disclosed in the present invention have high charging efficiency, low cost and low failure rate.

Abstract: The invention relates to a battery fixing bracket and a battery pack comprising the same. A substrate of the battery fixing bracket has a rectangular shape and battery receiving spaces are defined in the substrate, the battery receiving spaces are uniformly arranged in a form of matrix in the substrate, and a through hole slightly smaller than battery end face is formed at the bottom of each battery receiving space; snap strips and snap grooves adjacent to four corners are integrally formed at sides of the battery fixing bracket, the snap strips and the snap grooves have mating shapes, and are alternately arranged in a circumferential direction of the battery fixing bracket; and a connecting hole is disposed in the middle portion of the battery fixing bracket in a perpendicularly penetrating manner.

Abstract: A system for controlling powertrain of an electric vehicle, comprising: a driver recognition module, configured for determining the identity information of the controlled vehicle's driver, and uploading the identity information to a backend computing unit; the backend computing unit, located at a remote end of the controlled vehicle, configured for generating a first control information based on the driver's identity information; an assist control module, configured for generating a second control information based on the information related to current driving of the controlled vehicle which is acquired from the backend computing unit; and a control information application module, integrated in the controlled vehicle, configured for applying the first and second control information to the powertrain of the controlled vehicle. Optimized control for powertrain is achieved and an excellent user experience is provided. The system can be implemented simply, and be updated and maintained conveniently.

Abstract: The invention provides a bus-bar assembly, a power battery over-load protection system and method, as well as a power battery assembly, wherein the bus-bar assembly comprises a first connection arm having one or more connection ends so as to be connected to an upstream battery cell; a second connection arm having one or more connection ends so as to be connected to a downstream battery cell; and a PTC unit connected between the first connection arm and the second connection arm. The bus-bar assembly, the over-load protection system, the power battery assembly and the vehicle or the like according to the invention has better safety and stability.

Abstract: The invention relates to a lock assembly for a battery lock-up mechanism, a power battery comprising the lock assembly, a battery lock-up mechanism, a new energy vehicle, and a method for installing/detaching a power battery onto/from a new energy vehicle by using the battery lock-up mechanism of the invention. The lock assembly for battery lock-up mechanism comprises a casing and a stop end plate which define an accommodation space. A returning spring, a push rod, a locking pin or the like are installed in a central pull shaft. The technical solutions of the invention have a low cost, are easy to operate and are stable and reliable.

Abstract: A HUD display system based on lane line vanishing point according to the invention includes a HUD display, characterized by further including an image acquisition device; the HUD display is further provided with a displayed image adjustment module. The image acquisition device is used for acquiring images of road surface in the traveling direction of the vehicle and the images acquired by the image acquisition device include a display interface of the HUD display.

Abstract: A power coupling system for electric vehicle, an electric vehicle having the same and a control method thereof are provided. Said power coupling system comprises a planet gear transmission mechanism comprising a sun gear, planet gears, a planet carrier and a ring gear, wherein the planet carrier is connected with the planet gears, and the planet gears mesh with the sun gear and the ring gear respectively; a clutch engaged with or disengaged from the ring gear in a controlled way; a main reduction gear set connected to an output shaft of the planet carrier; a differential connected to an output shaft of the main reduction gear set; a first motor for driving an input shaft of the sun gear of the planet gear transmission mechanism; and a second motor which drives the output shaft of the ring gear or the planet carrier in a controlled way.