Lateral stiffness reinforcement device of vehicle body

A lateral reinforcement device of a vehicle body, comprising:

• a seat back reinforcement frame vertically installed at a rear middle of a seat back;
• a first hydraulic cylinder installed perpendicularly to said seat back reinforcement frame at a middle of said seat back reinforcement frame;
• reinforcement rods protruding out from both sides of said first hydraulic cylinder;
• a reinforcement plate installed in a center pillar at a corresponding disposition to one of said reinforcement rods;
• second hydraulic cylinders that raise a center console;
• a steel frame installed around an upper portion of said center console, said steel frame being contacted with another of said reinforcement rods when said center console is raised, said reinforcement rods facing an inner side of the vehicle;
• a solenoid valve installed on a hydraulic supply pipeline of said first and second hydraulic cylinders;
• a pump that provides hydraulic pressure to said hydraulic supply pipeline;
• a pre-crash sensor installed at said center pillar;
• and
• an Electronic Control Unit (ECU) that operates an electrical seat adjustor to align said reinforcement rods to said reinforcement plate of said center pillar simultaneously with said ECU opening said solenoid valve when a potential crash hazardous signal is transmitted from said pre-crash sensor.