Vehicle control system and vehicle

Abstract

The invention discloses a vehicle control system and a vehicle. The vehicle control system comprises an engine control module as well as a pressure acquisition module, a storage module and a load execution module which are electrically connected with the engine control module respectively. The engine control module is configured to generate and send a control instruction for pausing the vehicle load for a first pause time to the load execution module based on the atmospheric pressure of the current external environment detected by the pressure acquisition module, the brake negative pressure ofthe vehicle and the corresponding relation between the atmospheric pressure stored in the storage module and the brake negative pressure boundary value which does not generate the brake hard points during vehicle brake. By the adoption of the vehicle control system and the vehicle, the brake sensing quality of the brake system can be improved by pausing the corresponding load, in addition, the effect of the corresponding load is considered, and optimization of the vehicle brake performance and the load performance is achieved.

Description

technical field [0001] The invention relates to the technical field of vehicles, in particular to a vehicle control system and a vehicle. Background technique [0002] In the vehicle braking system, the engine intake manifold is usually used to provide negative pressure for the negative pressure booster, so that when the driver acts on the brake pedal, the provided negative pressure can amplify the driver's braking pressure, thereby realizing The brake operation of the vehicle can be successfully completed with a small brake pedal force. [0003] However, as the vehicle load increases, more energy produced by the engine will be consumed, and the opening of the throttle valve of the engine will increase accordingly, resulting in a lower negative pressure that the engine intake manifold can provide, and thus The negative pressure of the entire braking system is low, and the inflection point hydraulic pressure generated by the negative pressure booster is low, which will cause...

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Problems solved by technology

[0003] However, as the vehicle load increases, more energy produced by the engine will be consumed, and the opening of the throttle valve of the engine will increase accordingly, resulting in a lower negative pressure that can be provided by the engine intake manifold. The negative pressure of the entire braking system is low, and the inflection point hydraulic pressure generated by the negative pressure booster is low, which will cause problems such as bad brake pedal feel, hard braking points, and long braking distances. , and there may even be hazards such as traffic accidents caused by rear-end collisions

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